I understand why Apple uses TPM on their x86 equipment. I still consider it a restriction of my rights and available actions, but since it's only purpose is to limit what hardware Mac OS X will work on, I regard it more of a minor infraction or insignificant border skirmish than a full-on invasion.
Now, in truth DRM and fair use is really beyond the scope of intent of this particular thread, but since others are really beating the drum here, and since it is also a personal hot button topic of mine, let me weigh in with a few words here on what I like to call "Personal Rights Infringement" technology.
I used to work for Sony, and when the whole lock-down audio CD thing was going on, I was really disgusted, both as a person and as an employee. Largely as an outgrowth of that, I will not buy any entertainment materials from Sony (CDs, DVDs, etc.). Also, of course, since Sony by-and-large shuns the Mac, there's not much from them I'd be interested in buying anyhow.
Moreover, if you want to talk about the impact of DRM and the avenues of exploitation it has open to it, one need go no further than look at digital TV and some of the connection interfaces used for it, including HDMI. I don't watch TV anymore, and I haven't in years. The only exceptions I make to this are for once-in-a-blue-moon PBS shows, ocassional news broadcasts, and weather reports during hurricane season. Beyond that I only partake of episodes of specific shows through alternative means of distribution.
And, frankly, if it were to get to the point where that was no longer an option, I would opt out even further and watch no more and no less than what I annually do with my TV set (which, as you can probably gather, isn't very darn much.)
Further, when terrestrial analog broadcast is ended in this country, I will by that point probably opt to no longer watch TV at all, since I simply refuse to part with the cash for HDTV. The fact is the whole reason behind "high-def" has nothing to do with consumers and everything to do with justifying why the broadcast industry had to continue to hold on to broadcast spectrum that the FCC repeatedly threatened to take away from them due to their complete lack of using it. That, in a nutshell, really pisses me off.
Generally I do not buy CDs and DVDs, unless it's something that's really, really good, and then mostly to show support for that specific artist. I strongly believe one votes with one's wallet, so I try to do that kind of voting wisely. Most of the music I listen too comes by way of iTunes Radio, or CDs that I bought and have ripped. Oh, and when it comes to buying CDs, I try to stick with indie artists. And frankly there's a stunning amount of talent out there that the entertainment industry hasn't been able to co-opt or strongarm.
</rant>
P.S.: If you're interested in some of the many excellent sources for excellent "outside of Hollywood" music, do a Google search for both "south park musical festival" and "acoustic eidolon". Oh, and as regards Acoustic Eidolon, I've personally met them and own a couple of their CDs. But I digress...