Lets face it if your employer did not always pay you, you would find another job.
Indeed.
Whilst this might be something that puts drivers off, I don't think that it would necessarily deter The Hulk; his choices at present seem to be a team with dire financial circumstances or a team with less-than-ideal financial circumstances. Given that the latter is also more likely to produce a car capable of fighting for podiums and wins, I reckon it will still be a viable option. Poor guy, though. His career has definitely not gone the way that it should have so far, given his talent.
Of course, there's always that slim possibility that McLaren drop Pérez in favour of him.