But if you put out a concept album, do you expect it to pay your bills for three or four years? I don't think that's a reasonable expectation. If you want to make a living off music, then you might need to put out more music, or do other things like playing in a cover band or being a studio musician.
Compare it to actors/actresses who do hollywood movies, but also do indie films. If you want to make a living, you might not be able to do whatever it is you want, and might need to put out some more mainstream stuff.
Only a few people really get to do what they want in the arts and make a living.
