I think massage joints like Nuch are good for guys who have to do their business quickly in the afternoon and are willing to pay a premium for convenience.
But since we're talking about money, probably the best deal in Bangkok are Soi 4 freelancers who are good to go for 700 baht late at night. No barfine, lady drinks etc. But u have to have a room.
The key is not to ask how much, but rather to chat with them for a half a minute or less and if you're interested just smile and say "700 baht OK "and it's doubtful you will get refused.