Walmart offers the Skywalker 55" Bounce-N-Learn Trampoline, model no. SWTC055, for $49 with free shipping. That's $10 under our mention from a week ago and the lowest total price we've seen. (It's a current best by $30.) It features an interactive sound game and safety enclosure, and will support jumpers weighing up to 100 lbs. It requires three AA batteries (not included).