I agree that it's bad for Yamaha because they barely move. I was disappointed myself. The kids have only played with them once and put them back in the box.
Funny thing is that there was a Skidoo & Polaris on the shelf right next to these, they were alot bigger and had real rc battery packs with them not just AA's. The only time I would look at either of those two brands was in the toy isle at Farm & Fleet!