How much do the Lipo batterys cost? Im not sure what hobby shops Im thinking about going to but I live in the Roseville area. I know there is one in Rocklin but they already do trade outs with SWA for tickets so I'll have to go to another place and see what I can work out. I think Im leaning towards the 4x4 Traxxas Slash though. I really would love to get one of these trucks but at this time I dont think I want to spend that much money on one so I hope to do the trade out with the airline tickets. I also was wondering how far these RC trucks can go before they get out of range of the controler. If they really get up to 70mph that thing can be long gone in secs. lol....