To be clear - I do prefer original equipment over emulation, but RPi in arcade cabinet without access to display is wasted potential for me. I would not have in my collection multiple arcade games and arcade systems if I would prefer emulation over original equipment. I do prefer arcade hardware over emulation because of couple a reasons. In example Mortal Kombat community about a couple moths ago discovered EJB menu which gives you access to settings directly from the button panel. From EJB menu in some cases you may play for free without accessing test switch behind coin door. Real board with Mortal Kombat you may convert i.e from 4MB ROM units to 8MB ROM units by replacing jumpers and GAL chip. Emulation not always may be capable to stand these tricks and cheats. Emulation never will be capable to play sound in exact way as original equipment does. 3D games never will got original speed and synchronization. Reasons why original Equipment is better over emulation is a couple more. But with emulators we may afford quick tests or diagnostics in case of EEPROM testing or dumping. So in overall I prefer original equipment over emulation, but emulation is in my case appreciated as well.but now a days I try to run everything on original hardware if I can
Because webserver at RPi side is present or you have written python app. Connecting RPi to VGA monitor will not disable that feature, so what?but you can load from anything with a browser that can connect to WiFi, like a laptop, iPod, etc.