The reason for the acid answers is very simple ... if you have 500 TT and you don't have a job, why the Airbus rating ?!?
Most of the pilots in PPRuNe explain to newbies about the danger of paying for a useless rating. If the guy actually looked around he would not ask this question.
Normal way - look for a job, go to the interview -> if a rating is needed - pay for one
Funny way - Get a rating (the bigger the better, i'm expecting soon guys with A380 and 500 TT), ask on a forum what to do.
Maybe acid/bitter but true (in my opinion).