that last panel was very nice. Too bad they only put 5 buttons per side... a TON of games use all 6 buttons.
And if you don't htink you have enough room... your right... Either remove items or make a swappable control panel solution. But having too much too close sucks... making the controls not nearly as good as they should be.
Advantages to swappable control panels is each panel can be as simple as can be. And you can always add more when you get a good deal on lets say a defender joystick. Troubles are that most frontends can't handle them well. I wrote my own to handle it (but haven't released it because of problems with the joystick control, then lack of enthusiasm for the summer)
Moduler panels can be very very cool... but you have problems in that you will probably be the only one who could ever swap them.
And if you don't want to go that route... I would go with less with a dream to build a second arcade that handles a bunch of other games with different controls.
Or heck, spend a bit more on the joysticks and go with the happs 49 ways with floyds rotary adapter and you get 4way, 8way, 49way, partial analog, rotary all in one joystick. Then add a trackball and you have a non franken panel that has most of the controls you would ever want.