Getting a psp now (2011)?

Ok so its already 2011 and i don't have a psp. i want to own it since 2008 but i was on and off about getting one. Now, i dont really know anymore. should i get one? its been half a decade since the first ever psp ever came and now im having doubts of the future. for example, for this console like after a year or 2, not many great games might come out for the psp and it'll be dead like the gba now. i have heard rumours of a psp2 and phone and it is predicted end of this year or next year. so, whats it for the psp? is it still worth getting one now? im afraid after a few years, it'll be dead and the psp will be left in the corner, building up dust. has the trend for the psp gone down already? to me, it was 2008 and 2009 where the psp was at its peak of popularity. now, i dont know really, i could catch up on the older games but is it really worth the purchase?