I hate Oblivion. It's like a sandbox game with no toys, tools, water, or even sand. Actually, can we call this this genre "box" games? Like when you were a kid and given a refrigerator "box" and told to "make your own fun." Oblivion offers the same level of infinite possibility. (Note: I hear Shivering Isles has actual content.)
It is true that you see a lot of shitty-ass "sandbox" games getting that sort of pass from game reviewers. It may not be fun or compelling, but by god, you can do whatever boring non-activity you want!
Well, I have a beefy-ass rig now, the patch supposedly fixes performance issues, and my favorite thing about BG/Black Isle/Bioware games is characterization, not combat mechanics. I'll give it a whirl. Uh. Post Metroid and Persona 3. Maybe.