Personally speaking, Sacred 2 is a pleasant diversion from 3 years+ of Guild Wars. However, I would still recommend GW to anyone who wants to try the MMORPG type game. It's well thought out, balanced, mature and has a good player base.
I'm looking forward to GW2 and Diablo 3. In the interim, I'll probably keep my eyes peeled for anything else on the horizon and revert to some old-school SNES emu fun with Secret of Mana, 7th Saga, Zelda etc.