I've been looking at getting a Uni Press for a little while now, and have seen plenty of 23s for sale. The Universal Presses are popular and fetching decent prices these days as MF polaroid bodies, but because you can't fit a pola back to the Super 23s... they aren't worth anywhere near as much.
Originally Posted by SteveR
Here is one for sale right now, $267 AUD
Depending on condition, it might be worth $300. Maybe $350.
To be honest, I'd be keeping it. It's utility far outweighs the small amount of money you might receive.