Zero,
I've never tried them, but those friends who have seem to like them. One wears his as a nice variation on office-wear. They avoid the traditional "sameness" of business wear, but avoid looking overly sporty as well. They've allowed cycle-commuting without the need/hassle of clothing changes on arrival.
I don't mind paying more if something will truly last. My Ex Officio Amphib shorts were an example. They cost ~USD$65, but will last through near-constant daily wear (swapping between pairs) 6 months/year for as much as four years before sun-rotting (become subject to spontaneous tears). A tremendous value and actually better value in daily use than less expensive shorts, but painful price-on-entry. Now, like many "perfect" products, they've been discontinued/redesigned into a less ideal product that in my opinion is not worth nearly as much.
Moral of the story: If you find the "perfect product", stock up when you can; it likely won't be available for long.
Hmm. Wonder if this could be used to "justify" multiple Thorn bikes -- "Oh, no, they might change. 'Best lay in a dozen now...".
Best,
Dan. (...who thinks there's no time like the present...unless it is tomorrow)
