If someone is tuned in to a specific characteristic of a loudspeaker: imaging, soundstage width/depth, a specific timbre or coloration that they tend to like, whatever, they'll gravitate to a speaker that gives them what they want. I think we horn-heads gravitate to the dynamics of speakers like Klipsch.
Folks who don't crave dynamics will look to other speaker types or brands, and would probably describe the sonic delivery of a horn speaker as being too "in-your-face". This doesn't mean other speakers are bad, or that Klipsch speakers are lacking. Rather, we all just like what we like.