Ever Lighting via Amazon offers its Prime members the Syma 3-Channel Gyroscope Remote-Controlled 7.5" Toy Helicopter in Blue, model no. S107G, for $16.88 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $4.70.) That's $3 under our mention from last summer and the lowest total price we've seen. (It's a current price low by $4.) It charges via USB (cable included) and flies for up to seven minutes per charge.