It's just hard to find the desks now and the new machines with the free arm, the machines won't fit the desks. I have a lightweight(take to class machine)Brother machine that came with a table and so I've gotten used to it. My at home machine is a Viking Emerald 183 and it didn't come with a table.
I learned to sew on a 1960 era Singer, and my Mom had the machine desk. They were the best! I found one for my old Singer machine but it was so flimsy, one of my cats jumped up on the leaf of the table; the whole thing, machine and all tipped over. Of course, the cat only did it once, it scared him so bad he never got up on the table again!!! Chris