dude..i've seen and tryd yniqs and their quality is awesome! the reason why they're more expensive is becouse they use the best parts that they can find.
the best rubber,
the best foam, the best strap etc etc... So it's a very high quality
product. They make the goggles in itally when most others are made in
Yniq has at least twice the production cost compared to the
others you mention but the price is only slightly higher.
so yes..i kinda do;) already have oakley and smiths