North Lake Tahoe.
There are about a dozen ski resorts with lift tickets anywhere from $25 - $80 day (vs. Colorado's $80-100/day). North Tahoe has some smaller resorts (Boreal, Tahoe Donner, Donner Ski Ranch, Mt. Rose, Diamond Peak, Sugar Bowl, Soda Springs, Homewood and a few others) that are not as packed as the Colorado resorts....and don't price gouge, especially for weekday lift tickets. Hell, kids tickets at Squaw Valley are like $10 or somewhere in that ballpark.
Also, you can stay right on the mountain...or stay in town (a short drive to the resorts)....for anywhere from $50/night to as much as you want to pay.
There are also a handful of small casinos on the north shore (Nevada side) that are fun.....
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