I think I'll come back to the Spark some other time. Right now I'm happy with the synths. I just got Albeton live and the sampler there is exactly what I need right now for percussion. When I need some classic drum machines sounds I'll totally come back to the spark for that. Right now I'm into field recording different sounds and using them for drums stuff, which you need a badass sampler for.
I know this is a different topic for a different arturia page but I can't say enough about the 2600, the cs-80, the minimoog... playing them through my Black Lion Audio Sparrow DAC and my Modded KRK's... shakes my whole house. Amazing.