This. This is the entirety of the issue and the reason we are even having this discussion is due to the opportunity that Gamestop saw in the market and took advantage of. Period. The desire from devs, I would imagine, in getting a cut of used sales is that Gamestop is ACTIVELY selling a publisher's product against itself (telling the customer to buy a used copy vs. a new one at the POS). Not to mention the buy back conditions that still exist with many publishers and their distribution channel. Gamestop has figured out how to get enough product into its channel that they can continue to monetize it while cutting off new sales as quickly as possible.
Fantastic business for Gamestop, but comes at the price of overall health in the distribution channel.
A different discussion for a different thread, but this had less to do with abject greed than masking sure you present to the street what they expect. Unfortunately, when you are a public company you are at the whims of the market, analysts (who may not even understand the business you are in but still present and opinion or recommendation), and public perception. Not defending all big business, but it is not as cut and dry as you make it out to be
Assuming that you would go an buy new or just wait to get a used copy. We all know of at least one person (amirite) who only buys used. Always. At any rate, you can't make that assumption that selling old games drives the purchase of new. It is most certainly a mix.
As for the other comments above regarding the stupid developers who don't know how to budget and spend too much on making games....seriously? Companies are about retaining revenues, not blowing through them. To a large extent, they are placing bets on big budget titles and the costs that go along with those games are significant. We, as gamers, want more (more graphics, more content, more levels, etc.) but complain when we hear about the cost of such development? Come on....