Although I like the Koala, Horn or Arrow tables, they just don't seem worth the money to me. If I'm paying that much, I want wood, not wood particle board! I've also seen ones that are wood at quilt shows - they are gorgeous, but holy cow, that's my sewing budget for years and years.
In all honesty, I'd look at making one from a table, desk, or cabinet (which is what I did). There are several threads here that will give you ideas, also on Pinterest. I think you can end up with something much sturdier with a lot of room, fit to your needs. The costliest part of mine, and worth it, is the acrylic insert from DreamWorld. They have them made specifically for whatever model machine you have for a perfect fit.