I love 30 inches long (or more) tables, and if you have a cutout in table for the machine, all the better. I like that tables have plenty of leg room. Some sewing cabinets have drawers right up next to your legs. I like the free movement and generous space of tables, so I can pop up and down freely. You can always add drawers or cabinets, even if it is roller carts, but I hate the sewing machine space to have drawers right up at my legs. I really like to be able to swing around in my chair and move about freely. This can be very important not just for comfort but also to minimize stiff joints and edema.