It all depends how badly you really want to do it! If you have any doubts at all, I'd maybe suggest don't do it, it's now far too expensive for little in return and a big gamble as to whether employment will actually happen!
I wouldn't want do anything else, I've had my fair share of good and back luck - lost my job a few times now and could certainly argue I've put more into it than it's ever given me back, but at the moment, I'm very happy! (This Winter flying from Europe to the Caribbean!)
Would I seriously advise people to start at the bottom now?! Mmmmm, I have to say I wouldn't! But then it goes back to how badly you want it?!
Good luck!