My brother taught me the basics of reloading somewhere around 20 years ago.
Since then, my shooting partner and I have tweaked our load development process for our PRS type rifles quite a bit.
We can develop a load for those rifles very quickly and get great results (6.5cm & 6cm) and do it "cheaper" than match ammo with better results.
I quoted "cheaper" due to components cost being cheaper but the equipment not factored in (presses, dies, annealer, trimmer, chrono, and more).
We are currently setting up a dillon SDB (that my brother gifted to me) for 9mm. An early estimate looks like the cost of components at current prices would be $215 for 1k rounds (no brass cost). We also just bought 1k of blazer brass and I think shipped it was right around $260.
I am not sure what results we will see but the hope is lower pressure rounds to have fun with at minimum recoil. The cost of reloading is high when you factor tooling and time especially but the reward (as previously mentioned by others) is a customized round to meet a performance level that may not be as easily found with factory rounds.
As a side note, we have done some 223 for the AR's but we get results we accept with a couple of different bulk factory varieties but keep our expectations reasonable (500 yards and in with 12" target).