My guess is that (As with almost all Casio's since the mid 00s) he is probably thinking that the styles are falling short.
I would get BIAB or some other style playing VST thing.

A 2ndhand BK7m is great! Maybe even a secondhand SD40 could do!
My choice would be a module for styles, and not all the hastle with computer gear (Coming from a 28 year old, lol)