I'm toying with the idea of getting one of those remans off Ebay. I have no idea if they're any good. Those sellers do have pretty darn high feedback scores though.
My concern is that it won't last. That's a bit silly, because almost all remanufacturing houses use brand-new pistons/rings with bored or honed cylinders. It should be as good as or better than a new engine, but with all of these VX's blowing up, I'm hesitant to drop another 3-4k on one myself.