I think it will eventually get better, but there aren't that many games out there that I can only get on those machines to make it worth it. Up until recently it seemed like the PS3/360 were getting versions of games coming out on the next gen consoles, so there wasn't much of a push to get me to pick a new machine up, especially given the price.
That said, I do see this changing. The new Batman is a good next gen exclusive, as are the upcoming Uncharted and Tomb Raider games. Still, that's not enough for me to drop money that could be spent elsewhere (like more board games!). More titles and some price drops will get me on board the next gen train.