City Deals has Classic Fun Center coupons. A $20.00 gift certificate for Classic Fun Center (Sandy location) on sale right now for $10.00! (limit 1)
Membership to Classic Fun Center is $10.00 (online price) So, if 4 people are going you could use the $20.00 certificate to pay for 2 of the admissions. And, use the BOGO for the other 2. In the end you would pay $10.00 for all 4 people!
Or, if you're already a member use the $20.00 gift certificate from City Deals for the $1.00 day items. This place has really grown up from the days it was just a little skating rink! The new Jungle looks pretty cool! And, don't miss the coupons that Classic Fun Park has on their website here. I'm not sure if you can use them along with the City Deals Certificate or not but it can't hurt to have them with you.
Either way it's a whole lot more fun when it's a lot less money!