Maybe you should look at the people using those inlines as fledgling traditionlists. I can't imagine too many guys that shoot inlines having the opportunty to shoot a traditional weapon and not enjoying it to the point of wanting to own one.
The world isn't what it was thirty years ago when the only choice for a ML was a traditional style. Some people are going to enter the ML world through the inline door. Once they are in show them the beauty of your caplock, show them the speed and reliability of your flintlock. Show them a smile and some courtesy and there's a chance that same person will be spending a weekend with you chewing the fat over a primitive campfire next year.
I've read the concern about the shrinking number of traditionlists. The way I see it there's a whole flood of guys and gals just waiting to learn. Somebody just needs to show them the way.
Old Salt