I've always used Clark Thornton at Great Lion Co. But now he no longer makes them of entirely of wood. Now the body is PVC, the arms are oak, and the legs (it has 3) are steel.
Everything wing chun has some dummies where you can see the actual dummy you'd be purchasing. Aaron keeps in good contact with you should you have any concerns.
I'd trust Joy and Phil though in their choices. Phil also has a lead on a dummy from overseas that's more modern in materials and design. You might want to PM him about it.
Overall though...most MYJ's are in the 600-800 range. Some are as low as 500 and some are over a grand (USD).
"I don't know if anyone is known with the art of "sitting on your couch" here, but in my eyes it is also to be a martial art.
It is the art of avoiding dangerous situations. It helps you to avoid a dangerous situation by not actually being there. So lets say there is a dangerous situation going on somewhere other than your couch. You are safely seated on your couch so you have in a nutshell "difused" the situation."