Leaving aside the cost (which is for most folks neutral - we formally or informally budget a certain amount of money for our activities) the point is, that reloading brings a new dimension, understanding, and control to shooting.
Presumedly few or none of us shoot just to make noise and experience recoil. Striking an object downrange with the projectile, repeatedly or predictably, is a major objective of the exercise.
Before I started reloading, I just went and bought some cartridges - usually at or near the least expensive of whatever the store was stocking. Not much point in trying to correlate accuracy to a particular brand or type of ammunition. Might or might not find the same on the next trip to the store.
With reloading comes a whole box of decisions: bullet weight, profile, and metalic composition; powder burn rate, charge weight, etc; bullet seating depth and crimp. What is appropriate for the intended target, barrel twist rate, etc? What works, what does not, and why?
Then, too, I have the means to build off-the-wall stuff like a pawn shop load (three round balls in a 38spl case) should the fancy strike.
-shu