I'd check Craig's list and Freecycle for an older model cabinet before I'd pay that much for a lesser quality item. I got a really nice cabinet (with machine) for $50 through the Trading Post show on our local radio station. I had previously gotten a somewhat smaller one (also with machine) for $25 at a local resale shop. Not too long ago there was a commercial machine complete with table at an estate sale for $250...too bad I didn't have the cash at that point!
I think you can get a better deal with an older more solid table.
Most of the time I just put my machine on my huge solid oak dining room table...very steady, lots of room, and the foot feed rests nicely against the table base.