I haven't read most of your whines here but if you're talking about 720 using the real 720 joystick via MAME, then your home arcade building obsession has taken over the part of your brain usually assigned to common sense.
Edit: oh wait, you are. Here's a clue: Only a tiny little niche market you somehow found has ever even heard of Ramcontrols or their stupid future plans and the amount of people converting, I mean destroying a real 720 cab control into MAME is so minute that nobody cares.