Currently I am using my SP404 in a very basic way, it is on the floor by my pedals and I use my feet to trigger transitions in song with my band(and also a vocal sample in the middle of one song).
What inspired me getting one was seeing Animal Collective play an intimate club show in 2007. The way they used SP samplers live was really inspiring, creating a toolset that allowed them to improvise transitions between songs and it even seems that they jammed some song. This was before strawberry jam and they played a lot of new material in an early form. Very inspiring stuff.
There was this kid Spender Radcliffe that called himself Blithe Field that used to have some amazing youtube videos of playing an SP404. He still has a great bandcamp page of albums made almost exclusively âin the boxâ on an SP and later an MPC of some kind.
What I like about the SP is how active the SP-forum community was in finding workarounds and workflows that really expanded on the functionality of the SP. I love to record some asynchronous loops and just compose stuff on the fly with those phasing in and out of each other. I need to use my SP more.