It's a shame that some people get caught up so much in "being right" that they stop considering another's position, but don't leave because of it- there are several people willing to discuss and change opinions still here.
That said, I think we'd agree that certain DRM is simply unacceptable, even if on things we rent. I feel like the renting/owning distinction isn't relevant in terms of DRM, though- IANAL, and so obviously my interpretation of law or what it should be is incorrect, but when I rent something, I feel like I have any capabilities that I would when owning it except I have to return it in its original condition at the end of the contract term. I wouldn't want my landlord checking in on me every minute to make sure I haven't done anything bad with my apartment, certainly.
That said, there's plenty of other middle grounds to escape to. If I want to pay a local artist based on how often I listen to his music, I could write a simple script that calculated how much I owe him every month and display that info to me- and if I went over some limit that I personally chose, would halt reading the file and tell me so. That, IMO, constitutes DRM, but is a bit different in that I have absolute power in how much I'm paying and to who, I'm free to disable it if I wish, it's incredibly noninvasive, and it has zero legal enforcement. If we're willing to agree that this is DRM (which we may not!), then obviously the optimal amount of DRM- something that could, in theory, balance the wants of both the consumer and the producer of the content- lies somewhere within this spectrum.