Fully concur with Frans,Abacus and Donny here...
the amount of styles available is almost frightening and is definitely killing creativity to some extent. With a hundred vedy good generic styles and a similar amount of good sounds, a bunch of decent emulations of natural instruments with an added bunch of fantasy sounds,pads and synth sounds should go a long way to keeping each arranger player happy.
I know it makes me happy,that is probably one oth main reasons I purchased a secondhand Ketron SD7 two weeks ago.....for all the right reasons......and you'd be surprised nay shocked even to learn what I am considering to add to that one of these days!!!!!

regards,
John