For the few of us who have never played any of the elderscrolls series from before Oblivion, can you elaborate your point? I only need one more reason to pesuade me to muster up the energy to see if GOG.com sell them.
If you want one more reason to get them, Bethseda released both Arena and Daggerfall for free at their website.
As for the censorship, remember that book in Oblivion (The Real Berenziah or something like that), in which there's, at one point, "This passage was censored by the order of the Temple"? Daggerfall has this passage uncensored and I'd say that the temple had a good reason to censor it.
Another thing you won't see in later games are certain fairly humanoid monsters that don't seem to have invented clothing. Not that there's much to see in the resolution Daggerfall runs on, but it's pretty much rendered. Also, underwear in general was apparently invented between Daggerfall and Morrowind.
Again, there's not that much to see in that resolution, but what you can see would give most likely be enough to give it NR these days.