What is wrong with these motors?

[musicmkr]

ClickAutomation.com has a 680 oz-in 8 Lead Stepper motor for around $85. You can see it here. It's a lot cheaper than the rest of their inventory so I feel like I'm missing something. Any idea why this motor would cost so much less than the rest of their steppers? Is there something wrong with it?

What am I missing?

[Cold Fusion]

I don't know about the price, but I can comment on the motors. I've got identical motors and they work great! I never have lost steps, even with a very large pitch screw. The also work great with the gecko drivers, very smooth!