I just got a Waldorf Blofeld and for the price it’s pretty amazing. I am working on acquiring an Octatrack to sequence it, but for the time being just playing it live is a blast. It’s capable of a lot of different kind of sounds, and the interface is pretty good for a grid with only 6 knobs. (not counting volume and the data knob.) Novamusik has several for $499 right now.