If backwards compatibility was all you cared about... why would you care about the ps4 at all? If you just want to play ps3/ps2 games then wouldn't fixing that 60gb be the much cheaper option anyways? Or you could go buy a $50 used ps2 from a pawn shop or something.
I got mine out a few years back. Apparently i had a much less traumatic experience afterwards than most people i've talked to, i had pretty much no bleeding or pain after the surgery, it was just an inconvenience to eating for a while.