The town of Telluride/location of the mountain to the center of town, etc are definitely awesome. Don't think you're wife will be disappointed in the unique ski town atmosphere.
Haven't skied since the expansion, which looks like it added a great deal to the terrain offered. Don't know how much of that is open early season, but sounds like you chose right as apparently 42" season total so far and a 3 ft storm total! Some people rave about the mountain, and thought it was solid mountain but wasn't one of my favorite mountains (pre-expansion), but again, looks like the expansion could make it a definite rank changer. Anything overhyped can be a disappointment though!
Wolf Creek definitely is the best bet for early season conditions year over year. However, they've only had 41" this year which is about same so far as Telluride. Heard some of the hike up Alberta Peak was open this last weekend, and they can be open with great conditions early Thanksgiving. Great microclimate as someone mentioned. Here's about 1 yr ago exactly which isn't that unheard of for Wolf Creek.
(I'm always amazed how far/number hours people from Texas drive).
For May skiing:
Need to closely watch when you go in May, as some resorts will have parts of the mountain closed that limit the overall experience you'd have otherwise. Had hoped to ski A basin last May, but we had to cancel last minute but wasn't sure what the experience would have been with parts of the mountain closed in May and when they close the various parts of mountain depending on what part of May. I think some mountains may even close mid week and just open up weekends in May?
If Mammoth had a decent year (unlike last few), snow pack is usually good if all the terrain is open, it's one of the best all round mountains in the lower 48 (IMO). Deals for lodging tickets can be pretty good as most of Southern California by May is thinking beach over mountains (even by April Spring breaks also). Again be sure to verify what's open as it may not be worth it if they've closed a significant portion of the mountain as haven't been spring skiing over there for some time).
Couple years ago, finally made it out to try Mt Bachelor in the spring (it was closing week - just before Memorial Day). Thought the town of Bend was nice town with nice small historic downtown and easy 20 mile highway drive up to mountain. I think about 1/2 through the month of May the back side closed, so we missed exploring that terrain. Had great spring pass ticket that was hard to beat pricewise (I think it was $179 for month of May). Mountain wasn't exceptionally challenging (some runs off the barely a hike off Summit lift were fun) and what was unexpected was the mountain was pretty much devoid of any moguls. Was actually an interesting change of pace (and break for a bad knee) as we'd never skied such a mogul free blank slate of a resort and it has a definite volcanic vibe if you haven't skied that type of experience. Few days snow started off a bit crusty in am, but then turned into some very very fun corn type spring snow where you could just let them run. Weather changed and had pretty iced up day, and then had some great spring powder all within 6 days. Have some video showing that trip and what conditions apparently are not unusual there, but the spring corn fun doesn't translate well onto video.
It's really a shame mountains (like here in NM and most other places) close early April, so it's very rare to get to experience the fun spring corn and spring wet fun type of snow you get into May with good snow packs. So much effort to get people on the slopes by Thanksgiving with marginal conditions and then mountains close when there still plenty of fun snow, go figure. Definitely advise experiencing late season snow, and with a decent width under foot, keeps you above the slush. May is nice because things are definitely less prone to freezing up and then not softening up in the am (vs. April which can be fickle for that). But most skiers are done so hard to justify keeping mountains open. You just need to bring right wax and clean your skis daily.
Others may give more feedback, but I think aside from the other mountains listed above, I think Snowbird is open into May, possibly Squaw Valley?. (I'd appreciate hearing feedback on other resort terrain status for May for open resorts also).
As you're in Texas, conditions are always fickle, suggest you book via Southwest to a couple locales and cancel/change your flights if conditions don't materialize by time of your spring trip. No real penalty if you reuse funds by 1 yr with Southwest, which no other airline can say, and ski's/baggage go free. Mammoth and Bend are both about 160ish miles from either Reno or from Portland, and both are easy drives (not really mountain driving). You can fly into Redmond about 20 miles from Bend, but likely more on non-refundable flight). There are flights from LAX and I think Reno to Mammoth, but I think they are limited/non-existent come May due to the low demand.
If you're up in Santa Fe for skiing, and want to exchange tax prep for place to stay, let me know. Or would I have to report that "income?" :)