Sega Arcade Cabinets
From Sega Retro
During their prime, Sega produced a number of multi-purpose arcade cabinets. The idea behind this concept was that arcade operators would simply pay for the arcade game (i.e. the ROM board(s)) rather than an entire cabinet, saving both storage space and money as the new game would be placed in one of these cabinets instead. The majority were designed and built by the now defunct Sega Mechatronics between 1988 and 1999.
These multi-purpose arcade machines are famous in their own right, being used in a number of Sega arcade centres. The design heavily influenced the Japanese Sega Saturn Virtua Stick and Virtua Stick Pro.
These days, cabinets of this sort are rare, as arcade gaming as a whole has been in steady decline since the 1990s.