I think, and am not a recognized expert on this, that Campagnolo has the pedigree and SunTour has a cult following. Even with that, the post slant-parallelogram patent era Shimano were also very good and you would think that people would consider this later Shimano to be a suitable substitute, however, there are many, me included, that just like SunTour.

Paying big $$ is another story. We of course are talking pre-indexing period.