Reason #5: Wayne probably has enough material recorded for him to continue releasing music well into the future even if he's technically "retired."
Somewhere out there in the world, on a hard drive that's (hopefully!) sitting in a safe, there are hundreds of unheard Wayne songs. So, if he ever gets the urge to put out some new music or one of his business ventures falls through and he needs some cash, all he needs to do is open it up, drag 12 or 13 tracks off it, and put out a new album. We're sure they're not all hits. But, during his prime, Wayne was recording tons and tons of new material everyday. So, we're sure he has plenty of music in the stash just in case. But, in the meantime, he should enjoy his life away from the studio—right after we get that Carter V, of course.