Just picked up a Nikon neutral color filter

And it's awesome. I got it at a Ritz Camera going out of business sale locally for $30, so it was a steal either way.
I never knew how good these filters were until I tried one. I can't tell that it's on the lens even if I blow things up to 120%! What a piece of glass!
Anyway, I just had to rant a little and let everyone know before they're lall gone at this price. If you have a Ritz in the area, do yourself a favor and check out what they have.

At these prices I feel like I should buy another just because I have other 52mm lenses that have cheaper filters attached. Now, they don't have any clear filters by Nikon, only 52mm Quanaray Professional ones. Should I be looking at these or are they..*ahem*, crap?
This one is supposed to be for a macro lens, so I guess it would be pertinant to get a good one?

So, Quantaray Pro series filters. Good? Bad? Anyone?

I don't use filters...Google reviews on them I'm sure someone has used them...

I use Hoya filters.