Frank,
you probably don't "need" those instruments, but if your pocket can "bear the load", and it doesn't subtract money from your food, so be it !!!! You don't have to justify it.

I am interested to hear what the flr2007 system sounds like. I don't need live playing, a midi file playback, with what you think are the most suitable sounds, would be enough.

Can you do something like that on your spare time? Or am I asking too much?