Yes, I think you should try it. I also recomend you try Morrowind, though that is the slowest game of them.

I agree with almost all of the above. Although I'm no where near finished with all the quests in Skyrim, most (almost all) I've done so far are pretty basic (get this, kill that). Alot of Oblivion quests were like that too but there were quite a few very creative quests. And although I also like Morrowind, that games seems to have very, very simple quests compared to Oblivion. So quest-wise Oblivion wins in my opinion.

Skyrim edges out Oblivion in dungeons backstories. And have have been one who vehemently disagrees with the fiction that Oblivion dungeons (or landscapes) are not unique. However, Skyrim does have a bit more dungeons with a back story. In terms of dungeon design, I think it's maybe a tie, or slight edge to Oblivion.

In terms of graphics, as mentioned above, with mods Oblivion can look as beautiful as Skyrim, maybe more so in some places (and excluding NPCs which look better in Skyrim). However, that is mostly because of the beautiful landscapes. Technically speaking, if you look closely you can see that Skyrim is much superior to Oblivion in graphics, Fallout 3 is better at graphics too. But the general environment can give the impression that Oblivion as better scenery. But in any case the graphics difference close enough to certainly not discourage playing Oblivion.

Yes, you should get Oblivion. Its an awesome game.

There is a thread here now that discusses what we feel about the game, the calmness and the music especially. If you want a game that doesn′t raise your blood preassure Fire Fleurelle, then Oblivion is the game for you
Not saying it doesn′t have its share of exciting stuff, but it′s unlike many other games out there. I don′t play Oblivion, I live in it through my character