The Winter Park 4 X 40 give you a discount for 2 days at WP and 2 days at Steamboat (they are both on US 40) but it's not posted yet, nor are the 4 packs
http://www.winterparkresort.com/tickets-and-passes/season-passes.aspx
I agree with RG, take the kid to the local hill in the Snowies for two days, a half day lesson then skiing with the parents before you go to the big hill
I've got the Rocky Mountain Super Pass Plus and the EPIC Local this year, so I have some discount days available too.
The best deal out there for out of towners is the unrestricted 4 pack at Loveland, you get 4 tickets that you just attach to your jacket so you can got with 3 friends the same day. Of course you can get a free surface pass at loveland and hike to the top too ;^)
http://www.skiloveland.com/ticketsandpasses/compare.aspx
I buy new ski poles when I break the old ones, and I'm thinking abot throwing the ones I have in front of the light rail....
At Winter Park, Parsenn Bowl is great fun, the "new" blue back gladed terrain to skier's right is even funner.
At Copper, I'll take you into Spaulding Bowl if you're ready RG, you should be ok for Marvin Gardens.