Well, when I started buying Mosaics, 1US$ was about 1.50CHF - with the boxes at 16$ per disc, plus some 20$ shipping and 20$ of taxes, it was *still* cheaper than most discs I was used to buy in local stores! That may sound crazy, but when I first got these Trueblue catalogues, full with discs at 13 and 16US$, it was like heaven and I ordered huge piles of stuff (well, at least in summer after I earned some money on holiday jobs...)
Anyway, with the $ having gone down and the Swiss Franc having gone up, it's close to 1=1 now and hence Mosaics got cheaper and cheaper in the past years...
That's my perspective, but I guess among the folks here it's a rather unique one (he he, Unique, that's what some marketing/branding morons dubbed Zurich airport, btw).