That is true as well. I really enjoyed flying my Voodoo, which was a flying wing....think it's around a 12 inch wingspan. It does take quite a bit of concentration. Perhaps 2 batteries will be plenty before I'm ready to pack it in for a few hours. I was going to jump straight into a gas plane but thought better of it haha.
I like the thought of only having to refuel the plane if I want to fly again in an hour, whereas most batteries take 4+ hours to charge.