Unless your current machine is dead, or nearly dead, or you need the pc for an office, you don't buy it now. Sure you can upgrade to 7, but what's the point of wasting all that time and having something possibly go wrong and needing to delete everything with a fresh install. If you can wait 9 weeks for a new pc there's really no reason not to. Oct. 22 is just around the corner. And from everything I've read 7 is way better than Vista, so it's probably worth the wait.