It seems to me that those Elises on eBay that are private party cars (i.e. already purchased, not leased) might be an OK purchase. Caveat emptor, however.
I too wonder how things are going with Elise resale value. It seems that the hysteria is settling down and those Elise on eBay are selling for right around MSRP + tax and license. Maybe a tad more. But as Feffman indicated, people are getting "antsy" and trying to trade their Elise in only to find that they won't get what they want for it. That makes me wonder if some people who bought the Elise really understood what they were getting? It's not a GT car, but a pure, un-adulterated sports car. Maybe it's a bit too pure for some people and after the "new" wore off, they found they couldn't live with it?
The Bordeaux Elise on eBay looked good to me but was the wrong interior color. (I want Biscuit.) Personally, if I'm spending this much money, the car should be exactly what I want.
Bob