I thought cleaning a $20 keyboard with a $7 can of compressed air was stupid. How smart then is paying more for batteries than the toy? It is not like a razor and blades, where the overpriced blades are tied to a specific razor. We have the choice to say “no” to toys that require 3 ‘C’ and 4 ‘D’ batteries – case in point, the Hot Wheels Acceledrome Race Track Set. Then there’s the Tyco RCs with proprietary battery packs that cost $45, beyond the $60–$100 one has paid for the toy! Makes other RC toys like the RadioShack Porsche 911 that requires 8 ‘AA’ and a 9V seem reasonable, except the ‘AA’s in the car last only a few days!