The Noctua NH-U9B is $60 and is a fantastic cooler:http://www.newegg.com/Product/Product.a ... 6835608016
There are also the Cooler Master Hyper 212 models, of which I favor the Evo, for $35.http://www.newegg.com/Product/Product.a ... 6835103099
If you're looking for arguably the absolute best *all around* (i.e. considering construction quality, flexibility, and industrial beauty, as well as cooling performance) air cooler then roughly $75 will get you the Noctua NH-U12P.http://www.newegg.com/Product/Product.a ... 6835608014
If I was about to spend $60 on a cooler, I'd go ahead and spend $75 for the NH-U12P. $60 is a lot (to me) to spend on a cooler and once I'm in for $60 I wouldn't want to keep another $15 between me and what I think is the bestest cooler available.
If you're looking for the best price/performance combination then look no further than the Hyper 212 - and there are several models beyond the Evo, so prices range from $25 to $35.