Well, if guys are going to throw out their money, I won't stop them.
Doesn't bother me anyway; I have a job, type rating and hours. I just picture myself in that situation a few years back, during the post-9/11 crisis.
I was given exactly the same offer back then (20k Euros for 1k hours on the B737 for Air Asia), thought about it for a while, then decided against it.
I made the right decision for myself, as it turned out.
Looking back, all I can say is that I would never do it.