Also, picked up a second-hand electronic drumkit, the 2box Mk1, for a fair price:
I have previously bought the Vongon Polyphrase and 2Box Mk1 but wanted back-ups in case something went wrong with the first ones.
I'm not sure if this is normal behaviour
It's probably a waste of money (and also there should always be fairly close alternatives available), but if I find something that I REALLY like, I tend to do that if the price is alright.
(Similarly, I'll be in the hunt for 'back-ups' of my Novation BS2 and my Roland HandSonic HDP-20 fairly soon).
Cheers