Well, someone already necroed this thread, might as well ask about it here.
I don't "get" sleeve-ing Dominion cards. Like, what's the point? For MTG and whatnot, makes total sense. Cards are commodities, they're a simple investment to preserve card value. But Dominion cards aren't. It's $300ish to replace an entire collection of Dominion cards.
The main benefit I see is that it's easier to overhand shuffle sleeved cards, and if you spill beer you're less immediately fucked than if you spill them on cards. And those are nice benefits, but I would have to give up binder storage to sleeve cards, and I don't have a reason good enough to justify doing that. I'd love to hear one, preferably coupled with a good card storage solution, but it just doesn't seem right for me.