This was quite a while ago, but I got a Lee kit on sale for $100.
I got components to make 100 rounds for another $100.
Store bought was costing me $2 a shot, so when I was through the box of bullets and primers, the equipment had paid for itself, and I still had about 1/3 of a pound of powder left.
Then I decided I really enjoyed reloading, and went pretty stupid buying equipment.
If I 'save' much more, I'll be living out of a cardboard box.
The biggest thing was, it got me out shooting.
When all you have is a box of ammo, you don't want to go shooting because then you'll be out.
Now, when I shoot everything up, I get to go to the reloading bench and play Mad Scientist.
*I just checked Cabela's.
The Lee kit is on for $200 now, and the ammo I was shooting isn't even available (444 Marlin) but the same ammo is available in 45-70 (very similar)
$90 for a box of 20
So, the math still works out to about the same ratio, just with a whole bunch more dollars involved.