Originally Posted by
igknighted
Wire cages suck... they never hold shape, they drop bottles, and are heavy to boot. That said, for roughly the same price you can get plastic ones that are lighter, easier to use, more durable and look better. Carbon cages offer the same benefits as the plastic ones, at triple (or more) the price. But they are lighter and look better (most of the time), so at least they've got that going for them.
The $2 plastic cages from my LBS work fine. Carbon cages start at $20 (some are $100) and are not as durable as plastic. Weight is about the same.