Everyone has reasons why they have this instrument today and another instrument tomorrow. For some, having different instruments at different times is what inspires them to produce music. For others (especially those who play professionally often), there is also the sense of security having a backup ready to go just in case.

All electronic musical instruments of today are prone to failures due to their very own complex nature and heavy dependence on computers which every now and then need a 'wake up call'.

Having said that, it's you the musician that brings out the best in whatever instrument you play. Some need to have live drums and guitars and feel like they have a real band following them ... Others need to have synthetic sounds and luscious pads with great acoustic sounds ... while some need multi-colored lights flashing here and there ... etc. Just make sure you end up with a musical instrument that INSPIRES you to play.