[DaleDark]

In a word, nothing....

If I'm not mistaken, the "Deluxe" version was the one w/ the lenticular slip cover. My guess is someone swiped the slip from that deluxe edition. Other than the slip, there's no difference in PQ/AQ/features.

EDIT: The deluxe version came w/ a CD sampler and a booklet (as above poster stated), so while that pictured copy is missing its slip (it's one of the rarest slips), the CD and booklet may still be intact. If they're the same price and you want to add it to your collection, may as well go w/ the "Deluxe" one.