If you'd be getting it only for pizza, I'd advise against it, as a Blackstone oven is in the same price range and far less trouble to pull an NP pie out of.
On the other hand, if you have ceramic/pottery inclinations, that's a really good price on a kiln. But to really do pottery, you need more than just a kiln, though. Technically, you could probably find clay on a river bank, and start hand molding pottery with that, but if you really want to take pottery seriously, the equipment and materials aren't cheap. It also takes a considerable amount of electricity to fire a kiln, and electricity isn't cheap, so a great deal on a kiln may not translate into a cheap pottery hobby.
But, buying it only for pizza- no.