AFG... sorry, but I didn't quite understand you. You never seemed to answer whether, if there WAS a great Afghani styled arranger already available, whether you would have bought it, or would prefer to develop the styles entirely by yourself...
I know it's hard to imagine yourself in that situation, I imagine if Afghani music is your meat and potatoes, you have ALWAYS had to make your own styles. But although we in the West might appear to be lazy about style creating, I can assure you that, if you had access to as many great styles in the genre that you DO play (as we do), you might have found yourself doing what most of us do... simply playing all the time, making money, performing, rather than spending much of that time creating the styles that you need.
Add to that that, as you know from your Roland, a lot of the styles in the ROM are VERY difficult to better, or even equal (if you can make better western styles than the ROM ones, please send me a few!). Now imagine that this hypothetical Afghani arranger had styles in it that you were hard pressed to equal. Would you still gig on less good ones that you created, or wouldn't you simply go with the best ones you could find?
If you had to make a choice between using the MS with all it's great features, and making your own styles, or using a different arranger that had MUCH, MUCH better Afghani styles in it than you could ever make, what would you do?
Because that's the dilemma that most of us in the West face...
_________________________
An arranger is just a tool. What matters is what you build with it..!