This is a scam. Check out some feedback on Sonic Cameras:

http://www.resellerratings.com/store/Sonic_Cameras

The 100B is a terrific camera, it's pretty much the only thing I'll use to shoot standard def video on anymore, and it's incredibly easy and fun to use. Panasonic built this camera with filmmakers in mind.

But you should expect to pay somewhere in the neighborhood of $2000-$2500 for a new 100B, maybe slightly less if you buy used. If you buy online, go through B&H or Adorama--anyone offering a price much lower than either of these two reputable retailers is probably scamming you.

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Andrew Gingerich
Exploding Goldfish Films
Check out my blog at http://www.exgfilms.com
and my reel at http://portfolio.exgfilms.com