I have 4 tickets, selling for $50 each.
They're valid for any day of the current season (2016-2017) - no blackout dates. They can be used by one person for 4 consecutive days, or by four people on 1 day, or two people for 2 days, etc.
You can rent skis/boards at Loveland for ~$35/day.
For more information on Loveland, here is their site:
http://skiloveland.com/I haven't been to other mountains in CO to compare to, but I have gone skiing in NJ and VT, and Loveland was much better. I did a lot of research before I went the first time. All the other famous mountains (Vail, Aspen, Breckenridge, etc.) are resorts, with spas, villages, and hotels. Loveland is only skiing - that's all they do - so it's much cheaper because your not paying for anything else.
It's actually one of Denver's best kept secrets; all the locals go to Loveland, because it's closer to Denver than the other mountains, and it's cheaper and not filled with tourists.