These do not come along often so the suggestions of price at no more than $1000 isn't really valid in my humble opinion.
I have a very nice example. Playfield has some imperfections but it shows extremely well after my touch ups. Game plays flawlessly.
Since there weren't many made, not many available, and few good examples out there why is $1500 out of the question. If you want it you may have to pay for it.
I'll tell you, I wouldn't part with mine for less than $1600. No way.