Ok so I am looking at getting my first basic Eurorack system for industrial type techno music that can also do house and psy-trance beats. Considering a pre-built system like the Roland 500 series, Erica Synths Drone, Buchla Snoopy, or Soundmachines Modulor114 that already have the modules put together in case/power supply.

What would be the best way to go and why?