I am so glad you just posted. I was just getting ready to expand further on the idea of changing the feet. If not the feet, then the entire man. The fireball table opens up an entirely new market and I hope they follow up with it. Rather than designing one man, they have the potential to design several men for different playing styles. Since it is so easy for them to remove the rod and plug in another, one could just bring their own rod and play their own style against whatever style their opponent chooses. There would have to be a standard ball, but the mere potential of this is why I am buying a Fireball ASAP. I hope they expand their current goals for the foosball market. It seems that they are only trying to get into the market with an affordable table, but they have the potential to offer something that no one else has.
But on the interchangeable feet, you can apply that to any table. Each table would just design new men for the table, and players can then choose to put whatever feet they like. Would the other tables manufacturers buy into that idea?