I noticed a couple of things...
a) Microsoft seems to be dumping the dumb restrictions on NFR software. Now, you just can't sell it. Before, it wasn't even obvious how you could "legally" use NFR software.
b) Lots of restrictions on "first user of the software".
NO restrictions on the third-party that you sell it to.
At this moment, it looks like if you swap your copy of Vista with somebody else's, all the restrictions go away, since you are no longer the "first user".
MS obviously chose their "first user" wording to avoid "Restraint of Trade" violations. But it seems like they've left a huge gap in the EULA now.
I have no idea why MS is screwing with this stuff. It'll make a mess of repairing and upgrading PCs.