i agree to an extent......
we have done remixes for the radio in the past where we redid songs like "deja vu" by beyonce where we filled in one of jay-z verses, and "bossy" by kelis where we redid shorts verse, but it was for radio dj's. we never marketed the songs like it was ours people knew that. it was obvious we were redoing hits that were already in rotation.
mixtapes are cool for the artists to give fans a defferent perspective of their talents. we just did a mixtape rappin over other cats beats, but there are only maybe 2 or 3 "singles" we used. most of the beats arent even things that ever hit radio. but we also have a double album with original material on the shelf to back it up.......
i think the bullshit comes in when cats add their verses to songs and act like they did it with the artist. thats not the business.....