I got one when I bought a new machine 5 or 6 years ago. Came from my LQS and they were having a special so I don't know what it would have cost by itself. I used it every time I sewed for several years. I had DH figure out how to lower my table so I wasn't reaching up to work on the nice wide work area. It worked great and the only problem I had was after about 3 years a leg broke and it was expensive to replace.
Last year (for Christmas) I got a sewing table and that's even better, but way more expensive.