List is $575, but I don't think anyone charges that much. It's 40lbs and some places will charge extra for shipping. I believe you can order it from DonMar or LJ (insert your favorite local vendor here) and have it come on your weekly delivery truck, to save shipping.
Framingsupplies.com has it for $489
pictureframingequipment.com has 2 of them advertised for $350 ea (used)
United has it as item 2260. We got ours from them at one of the shows and took advantage of the free shipping promo, and it was less than $500 at the time.
Paul Cascio (a-frame) was offering them for about $400 with shipping last year, but im not sure of his current price.
We really appreciate what this tool has brought to our shop. It saved us sending back 2 bad chops just in the past 24 hours. (~1/8"th gap from a reputable vendor. yikes) A couple seconds on the sander, and good as new.