I've given up using the Steam Store because of how much dross there is. Finding quality titles is extremely difficult and the entire experience has become a chore. I remember being excited at each sale and constantly checking the Coming Soon tab but now I pretty much only get games on Steam from the Humble Bundle or via third-party websites like CDKeys.
Opening the floodgates is only going to further reduce quality. Steam should have two sections: Steam Prime and Steam Indie. And Steam Indie should still have quality control. Turning Steam into a libertarian wetdream only makes it a crappy experience for the majority of users.
"The price of freedom is eternal vigilance."