Costco Sale: Lifetime 4×4 Bouncer $149.99 by Rhonda July 21, 2020 5/4/15. Costco has the Lifetime 4×4 Bouncer on sale for $149.99 (after manufacturer’s instant rebate), now through June 7, 2015. That is $40 off Costco’s regular price of $189.99. While supplies… 0 FacebookTwitterPinterestEmail