Replying to Is Breckenridge/keystone worth it?

I am in Colorado and have a 5 day pass to a basin (4 days left) and the friends I am staying with are going to Breckenridge and keystone for 1 day each. They said they could get me a buddy pass for $100 for one day at one of the resorts, is it worth it? I had fun at a basin today and wouldn’t mind skiing it for the rest of the week and don’t really want to spend the money, but they are insisting I go and experience it.