Heck, get rid of M-Powered while you're at it, and just have Universal Pro Tools software for goodness sake. You can still have the expensive and cheaper hardware options. But heck, even if the software is the same across the board, a big time studio is probably still going to go for the HD system while the non-big-bucks users will still take LE routes.
Though surely I'm missing some aspects of this that make it not so good an idea.