yep, one thing i hate to think about in Diablo is that you can only go to level 99 (although I'm still only 40 but sssh) but the fact that you can get to as high as you want, max out ALL the combat arts etc, it's great! No more "Damn i wish i hadn't put those 20 points into this useless skill". Slightly less chance of your char being unique though.
I'd definately say anyone that likes Diablo or Divine Divinity or that kind of game should at least check out the demo of Sacred. Only let down is the hundred of bugs in it