While I can understand how used sales can hurt profits, I do find it fairly ridiculous how the game industry seems to go on about used sales as if they're the only industry affected by them. Especially given the death of most rental shops, and the fact that Nintendo pretty much never provides demos for anything, I'm far less likely to shell out for a game if I know that I can't trade / resell it afterwards.
papillon wrote:With a purely digital item, there is absolutely no difference between a used item and a new item.
With a normal console game, there is <i>almost</i> no difference between a used item and a new item. There's packaging, but people tend not to care about it. There's the sort of bonus objects you get with limited edition games, but few games come with those.
I've never actually heard of people being able to resell purely digital products before - is that even possible? I've always taken 'used games' to mean packaged, physical products, and I'm not really sure how selling on digital products would even work... unless I'm missing something?
I'd also say that with console games at least, there is at least a little risk involved when buying used. Back when I worked at Gamestation, people would trade in games in pretty dire condition, and as we didn't have time to test all of them there was always a chance when buying used that the game wouldn't even work in the first place, or that it'd work fine up until a certain point, after which time it'd be too late to take it back to the shop for a refund (i.e. every Dreamcast console / game I ever bought.

Not that that stopped me trading them back, but hey). Of course, assuming they worked properly there was pretty much no difference between new / used at all; I think maybe half the GBA games I bought as a kid were unboxed, used copies at £10 a pop. Good times!
That said, my only experience comes from console games (and last-gen console games at that, hur hur), so I guess I can understand why PC developers might want to prevent people from installing a game and then selling it on, assuming they don't need the disc to play the game. As a kid, there was absolutely no way I could have afforded to buy the games I did if I hadn't been able to trade each game back to the shop; not to mention the fact that as there was hardly any difference between new / used prices (damn greedy game shops, eh), I would almost always use my traded games to buy new. While I'm sure the secondhand games market is huge, at the very least each secondhand copy will have been paid for by someone at some point, making it far less hurtful than piracy in the long run.