I take my two kidsWe make almost all day trips. 2 hours each way.
We bring our lunch, and eat dinner at Wendy's or a pizza place. Pretty cheap.
We buy ~$200 gear setups for the kids, with a 50% trade-in in future years.
We buy season passes and go pretty much every weekend. The passes definitely pay for themselves.
I tune our gear myself (though I get my skis done professionally once a year by skidoc).
It's still not cheap, but we're able to make it manageable.
(Another one- or two-time possibility at some resorts is what we did last year. For first time skiers or riders, some places have deals where you take a few lessons and then get a free season pass. My kids and I did that with snowboarding last season at Waterville Valley, and the kids kept riding while I went back to skiing--hard to justify a set of snowboard gear for myself, much as I might like to.)