metabolix,
I think you'll find that there are two camps here in those who are even remotely entertaining the possibility of self-sponsoring a 737 type rating.
The first is as you say, thinks they deserve a 737 RHS just because they have a CPL/IR. To be honest I think these people are a minority.
The second is just looking for any break into airline flying at whatever level, and can see that until recently the low cost 737 operators have been just about the only ones hiring. Therefore if you are considering a TR it sort of makes sense to get a 737 rating.
I'm in the latter camp (although I have decided not to do one without a firm job offer for the reasons I outlined in an earlier post).
cheers!
foggy