If it comes down to the developers it will be hard to work out which developers will prefer it. you could imagine call of duty having a used game block but would they really need it considering how many copy's sell around launch.. what about games that sell average amounts, are they willing to miss out on possible downloadable content and multiplayer packs form used game buyers.
I dont even think every developer will want a used game block but working out whether or not it will be beneficial to a game they are selling could prove difficult. well i rarely buy new so im against it, though i can see myself buying new games more often if instantly playable demos do happen







