Just depends on how you want to look at it. Just take it as it was when the film was released, or coupled with all the EU stuff. If it's the latter, then Fett is proclaimed as the best bounty hunter in all the galaxy with Bossk, supposedly, right behind him (which Bossk conceits to). So, if you take it that way, then, yes, Fett is an expensive guy to put on the payroll. If you just take the films at face value, then, it's just whatever you want to make it. Still, Fett could be out grabbing another bounty, and getting paid for it instead of lurking around Jabba's palace. Considering he's there in all his armor and weaponry, it's unlikely he's there for a vacation.

-NJM