A5000 even... been told its even better.

but u see what i'm gettin at. an RS7000 or MC909 is about a grand & all-in-one. so if u want to upgrade your kinda stuck. where as with the RM1X & sampler option, you can change either. even intoduce a small rack or module like an AN200 desktop synth or the like. or just change sampler or the RM1X.