In terms of drawing the line I was talking about everything. But your criteria is price? Come on. You seem to be taking a very anecdotal view (I hope that's the right term) on this. You should be thinking more about the legal basis of what you're suggesting.
Used game sales aren't crippling the industry. Financial recklessness and poorly run developers/publishers are doing that. (It's like the argument that every single player game needs a multiplayer element so people won't sell the game as soon as they've finished it, or in other words cutting off your nose to spite your face). You think publishers making more money will make them more likely to take risks. Maybe. That generally goes for most industries. But often the games that take the most risks are the ones with the smallest budgets, which shows you don't need millions of dollars more in revenue to do so. Meanwhile you have Activision making ridiculous sums from the Call of Duty series, and their creative risk seems limited to making movie-licensed games. So what is this the next best option for? Publishers to boost their financials? Yes. Publishers to take more risks? Probably not. And at the expense of the consumer? Definitely.
edit: And the Steam argument is strange because no one is saying the fact that you can't sell the licenses you own is a good thing. It's not a good thing. As Laboured said, why don't people kick up more of a fuss? Because Valve do an awful lot of good for gaming as well.