I made mine with plexiglass from Home Depot. I made it to fit a card table. The hardest part was cutting the plexiglass. We used dowels for the legs and put covers on the bottoms of them. Make sure you file the edges and corners. I love it and made a fabric bag to carry it to classes. I got one w/my Pfaff but it is smaller. I really got used to the big one and use it even with piecing and smaller projects. I think I would try making something and see if you like it before buying one. There have been some really creative ideas on the thread.
Wendy