My best example of this was the Dish Network WebTV PVR (it wasn't called a DVR back then). Its capacity was 4 hours of standard definition TV, so practically speaking, it was really only useful for doing minimal time shifting. The hard drive would fill up pretty quickly if used the way we use DVRs today.
But that was just the start, and of course now the DVR has completely transformed the way we watch TV (well, at least until streaming came along).
However, I have certainly not seen the same transformation in Tesla's offering, and I have had EAP (or later FSD) since I got the car 5 years ago. NoA was kinda cool at first, but I don't really use it any more because it's lane changing algorithm got to be annoying (well technically I don't have a choice now because on highways I now get FSD and I the best I can do is minimize lane changes).
I agree that the one benefit I get above and beyond AP is the automatic lane changes (driver initiated). Using it for 5 years, I have become quite comfortable in its ability to see vehicles that maybe even I can't see. But that's about it. It has not transformed my driving experience in the same way that DVRs have transformed the TV watching experience.
And by the way, I think the part that
@ncoronado was talking about not making sense was the cost...and I agree. The same level of functionality (or at least very close) is available in other car makes for a lot less money. I'd pay $2000 or maybe even $3000 in a stretch for being able to have autosteer with the ability to change lanes by using the turn signal. Anything else that EAP offers has been a disappointment and I can't see paying $6000 for it.