Reloading has never really been worth it for 9mm, but it will save you money on the bigger calibers. Also, for people that shoot odd calibers like a 7mm mauser or .50AE, it saves us a shitton. Loading up precision shooting ammo for .30-06, .223, etc will save you money and let you be more consistent.
It used to be much cheaper, but bullets, brass and primers have gotten much more expensive in the last few years.