Trouble is, with some of the (ahem) less than stellar fic out there, the reader doesn't know it's junk until after they buy and start reading. A book with a big celebrity name on the cover, whether he or she wrote one word of it or not, is assumed to be big sales territory. Think Sucky, or whatever that wench's name is. That's where the large promo bucks go, and the hype, and the attention. Because let's not forget publishing is a business that must show a profit quarter by quarter, year by year.
Yeah, it's too bad the print market seems to be in a contraction phase right now. For my book that's available both in e-format and print, my e-sales are by far the larger number. If I knew what to do about self/e-publishing, I would be jumping alongside you.
Nobody knows how this is going to play out over the next year, much less 2-5 years ahead. Could be there will no longer be any perception of stigma attached to self/e-publishing; maybe we'll all be in that mode and comparing totally different "You ain't gonna believe this one!" stories. We'll see.