Originally Posted by
Shortsocks
it's a fuzzy feeling I get after I put them on and ride that brings me a little bit of satisfaction.
This is the most important part of cycling/any hobby.
If it makes you happy then it's worth it.
That being said, I'd go with the standard $30-35 EAI cog. I used one for a while as a messenger and it is still in great condition. Good price/product balance.