I don't think this is a bad idea at all and I honestly can't think of a better alternative for Sony. A UMD drive in the Vita would've just driven up its cost and made the hardware less reliable just for physical BC. Sony basically learned that a handheld that runs discs was a bad idea. Also, the feel looks to be 50% or 75% off of the full price of the PSN game. I can deal with that.
Actually, It'd be kinda cool to see this same thing implemented for console games, especially the 360. In that case depending on the price, even if you do get a game from GameStop, do the digital transfer, and then trade the game back in, Microsoft, the game's publisher, and GameStop all still got some money out of you.
The only way I could really see exploiting this is through my GameFly account.
Actually, It'd be kinda cool to see this same thing implemented for console games, especially the 360. In that case depending on the price, even if you do get a game from GameStop, do the digital transfer, and then trade the game back in, Microsoft, the game's publisher, and GameStop all still got some money out of you.
The only way I could really see exploiting this is through my GameFly account.