Aah, a traditionalist. Well, the Atari worked, why would anyone change it? the PS1 worked, why would anyone change it? the PS2 worked... you see where I'm going with this?
The current system of game sales "works", sure, but it is certainly not ideal for the game companies. Just like the video rental companies eventually made deals with the studios to cut them in on the profits, the used game market is going to have to cut the developers in on the profits in the resale market. They could have done it voluntarily and avoided technological measures, but they didn't, so now they won't have a choice.
As a customer, you probably won't notice anything different, you'll be able to trade your games and buy used games.
If they do what I hope they do, and put the onus on the person giving the disc instead of the person receiving the disc, it'll be even easier. You give the disc to a friend and while they have it, you cannot play your copy (unless you pay), get your disc back, and it'll reauthorize on your machine and disable their copy. This solves the problem of buying a disc on ebay and still having to pay, since you won't, it'll just work for anyone holding the disc. (They probably won't do this, because, again, it leaves the used market unchanged, and they really want a cut of the used market)
Also, everyone talks about just leaving your console offline and not updating your license, but that's pretty hard, and would only be a very small percentage of people. You just make it so that if it's been a certain amount of time (a few days, or 24 hours, or whatever) without any net connection whatsoever, you put the game back into "not-authorised" or demo mode unless the user inserts the game disc again. You can skip this check if the user has paid for the license online, since the only way they can transfer that is online, and it would immediately deauthorize their copy. (So for the digital download folks without discs, they can always play offline)
This solves all the legitimate use cases with almost zero impact on the user, except that they can now play without the disc in the drive if they have an (even crappy) net connection.