Do you hunt ones that are still used for the fairs, or stick to mainly the older, defunct ones? Obviously the older ones are better, but I live not too far from one that's still used for county fairs, and has been since at least the 40s, and all of the older ones are now industrial areas or otherwise inaccessible. Wondering if it's worth hitting since there's 60 years worth of clad on top (I'm a coinshooter, but clad just gets in the way of the cool stuff).