Hey! Post your own topic! Just kidding - I'd say around 500 or so, but I'm obviously no expert on the subject, since I, too had to ask for other opinions. So, I'm basically saying that I might be really far off, or I could be pretty much right on the bulls-eye, but I don't think I'd buy it for more than like 500 used. And if I were you I'd just throw the monitor in with the deal, because then the customer might think they're getting a lot more for their money and they won't have to take the extra time looking for one either.
-The one and only Keebler Elf-