my dotd purchases, the only him imps i own, are not models available at the shop. i also got them for half what they're worth with the lifetime guarantee, unblemished.
the threat of jai is far diminished from a few months ago. jai doesn't get many duplicates and since he already has most of the catalog he's not as dangerous a shark anymore.
DOTD are blems...but most of the time most people don't know what the blem is. Many blems are things like small cracks in the handle, a litle rust or a tear on the sheath and can be fixed by the adverage person.
But I think you should only buy from the site and stay away from the deals there are more than enough sharks every time the meat hits the water.