I'd like to say something about BiaB that a few are referring to. If you went into a studio and cut a song you would hire musicians (most folks don't play every instrument) or bring your band. This is BiaB, your studio musicians. No difference at all. If you play no instruments (vocalist) or many instruments while using BiaB, the rest is your studio musicians. If you go on stage to play that song, using BiaB, you will take your band with you. BiaB is not the same as comping at all. IMO.

But I have nothing against comping or using modern technology to record a song in the studio. If you put it together, and didn't steal the material you're recording, the 'end product' is what matters and what people will listen to. And 99% of what we record (may be more than that) is going to be listened to very, very, very infrequently.

"The desire for fame is the last infirmity cast off even by the wise."
Cornelius Tacitus