Seattle is a great ski city. It is true that the snow is not as good as Utah or Colorado, and that the sun doesn’t always shine. However, the mountains are great, and the terrain is steep and amazing. Crystal has excellent terrain, including some truly amazing hike-to stuff. Baker almost always gets more snow than any other area in the country, and the terrain is sick. Alpental (you can forget the other Snoqualmie areas) and Stevens are also good. All of these places are easy day trips from Seattle.
Plus, Whistler is an easy weekend trip, and the interior of BC isn’t that far either…
On top of the local areas, the backcountry terrain is mind-boggling, and with the deep snowpack you can find places to make turns well into the summer.
The downside is that every so often the Pacific Northwest has a crappy year (like this year) where snow levels are often high, and the ski areas get rain. The flip side of that is that most years the snow is deep, deep, deep. Mt. Baker has had years where over 1,000 inches of snow has fallen - you can see the record snow level marked on the lift towers. We were there over the holidays this year. Even though this is a bad year in the PNW, the skiing was awesome. On Christmas Day, Mt. Baker had 12 inches. The next day 29 inches. On Friday (the day we skied) there were at least 10 more, and it snowed all day. No, it wasn’t light and dry snow, but damn it was fun.
Compared to the skiing you get now in New England, the local Seattle areas rock (and I have skied extensively in both places).
Seattle is a good city, but you have to be able to handle the grey winters. People talk about the rain, but it isn’t the rain as much as it is the gloom. Yes, it rains frequently, but it is typically winter has just a constant drizzle (it rains more in Boston (44.2 in/yr) than Seattle (36.2 in/yr)). It is a temperate coastal climate - people still do things outside in the winter - they just wear gore-tex. However, it is grey all the time. If you like sunny days, winter in Seattle will be tough. The flip side is that summers (although short) are perfect. From July 4th through September Seattleites enjoy mid-70s and sunshine every day.
If you like Seattle on other fronts, don’t rule it out because of the skiing. Crystal, Baker, Alpental, and Stevens are all close to Seattle. These places have steep, interesting terrain, and are typically blessed by copious amounts of snow. The skiing really is great. Let me know if you have any other questions.