easondown,
Like anything in life, of course a 737 rating sounds better than a SD360 rating.
However, realistically how many 737 operators will give you a job with no experience on type except half a dozen circuits? Not many I think. Perhaps Ryanair will give you a pittance for coming qualified? I don't know.
easyJet have stated 500 hours on type is their minimum now, and I doubt that you get that included in a type rating. Unless you are really hopeless. In which case it will cost more than 15 grand won't it?
I still say "keep your money in the bank" until a clearer employment picture develops.