To be fair, handheld power's come a long way since the Gameboy - the Vita's almost capable of PS3 graphics. It makes sense that the battery life will take a hit. I probably played the DS the most out of any handheld when I think about it, although the Gameboy Colour got a lot of time too with Pokemon Yellow. But the DS was the first handheld where I played games other than Pokemon, so it probably got more time. Probably spent over 100 hours on the Ace Attorney series alone.