Looks like a bucket polisher inside a plywood box to me. Personally I can't see the $200 there. $50-$60 in materials tops.
I know this is a zombie post from 2 months ago but dang... the nerve of some people never ceases to amaze me. If you don't like the price move on or better yet, try building one yourself. And yes the bucket polishers are technically "easy" (and cheap) to build but they look like crap. these look nice and it appears that a lot more work goes into them. Don't be such douche and dog this guys hard work.
that is all