I own several volcas and i love them! Made a six-Volca stand and its All good.
Exept for one thing thats obviously missing, a Volca-mixer! In the same form factor and able to mix 5 or six volcas into one super-groove-beast
Maybe even Some step seq fx or side chaining would be great, but just beeing able to mix All your volcas with one master mix device, that would be nr 1 on my wishlist!!