The Lip Boarding racks I have are not nearly as nice, but were only a few hundred bucks, and get the job done just the same. The main feature I like about these is that they can rotate in 180 degrees and lock in that position. My current racks have a quick release, so instead of rotating them into the boat when I tow I just pop them off.
2013 Outback V
These are modeled after My hydrofoil rack and my foil is heavy heavy heavy, I'm pretty sure that their wakeboard rack could hold some boards. $550
http://www.skyski.com/node/323