An existing rod, badged with a 10th Anniversary logo
An improved/updated version of an existing rod
A re-issue of a retired rod - Ayu, Ebisu, Yamame
A mini rod (those seem to be quite popular these days)
An "elevated" non-zoom rod - high end, perhaps made in Japan
A rod developed and manufactured in the USA
Totally out of the box rod - saltwater, warm water, nymphing, etc...