What should I get, PSP 3000 or PSP Go!?

So im in a dilemma, due to the recent feedback I have heard on the new installment of the PSP, mostly rather mild, negative. Of course now you would say so get the PSP 3000, well no, because due to the mistakes Sony have made on their new installment could they be developing a new one, to rectify its inadequacy? Not too sure, advice from techno professionals would be great, and anyway please also answer the question, the main one anyway regarding which one I should get. Thanks, :)