As a reloader, I will say right up front, I haven't saved a single penny reloading. Yeah, that's right, not one red cent of savings! So
BUT, I have shot a whole bunch more than I ever would have buying factory ammo.
The trick is, what do YOU want to do reloading? Do you want to duplicate factory .45 bulk pack so you can shoot your 1911 more often? There's actually a fair amount of savings to be had doing that, though I don't reload .45 at this moment so I don't have exact numbers. Same thing applies to .357 Magnum and .38 Special. My .38 Special reloads using MBC's 158gr SWCs run about $10/100. (Actually a little less, because I have been using brass given to me and scrounged from the range, I haven't broken into the bags of new brass I bought.) Going to full-power .357 Magnum brings the cost up to about $27/100, using Hornady XTP bullets that outshoot every factory load I've found.
I shoot Highpower rifle competitively, and it seems to eat through good-quality ammunition pretty quick. I'll shoot an 80-round match every week or two through the summer, which would be 100-rounds worth of factory match ammo. Don't ask me what factory .223 match is going for, I haven't looked at it lately. Buying Varget powder in 8-lb jugs and Nosler bullets by the 1000, I can load 100 rounds of 69gr match ammo for about $24. And I can also tailor my ammunition for shooting at 600 yards with special 80gr .224" bullets, not available in factory trim.
And even in "standard" uses, such as .30-30 Winchester, I'm just as happy to make ammo. Using Sierra ProHunter bullets and H4895 powder, I can load for about $6.70 to refill a 20-round box of factory ammo.
It is all in what you want to do with it, really. For me, it's the satisfication of watching another X come up on target at 600 yards or felling a rack of steel plates on the pistol range with ammunition I made myself. Your mileage will vary.