I got the same exact model back in December, I think it was on sale then because I got it for under 60 bucks. They are the perfect size for a home shop as they aren't massive but are still big enough to put a decent size part on. Only had my height gauge for about 3 years, an eBay special. Doug from Metal Works Machine Shop was kind enough to give me a mostly complete surface gauge, I just had to make a scriber for it. Made a base with leveling feet for it as well, just welded together some chunks of bed frame and made some threaded bosses.
Was originally thinking about getting a sink cutout from a granite countertop store, but then saw these. For the price, you can't beat them!