You've said this a few times but I think it's a daft point to make. With having a lot of good games at once you've got a variety of games to pick from. Having that variety stops you playing a game so much it becomes boring (which can happen to even the best of games). Having a break and playing something else can really extend the lifespan of a title as you often go back to it a month or two later and remember just how good it is.
The PS3 has enough decent games to keep a newcomer very busy - it does me just fine - so not so daft eh ?.