When I first began loading seventeen years ago, I kept up with everything down to the penny just to get an idea of the possibilities of any financial advantage to this new hobby.
The amount of savings from my first batch of 2,000 rounds of 180 gr. FMJ .40 cal, compared to buying it off the shelf, paid for my first Dillon 550. I stopped counting rounds on that press years and years ago when I hit 50,000 rounds. All that gear has paid for itself many times over.
For me, though, it's not about saving money which I believe absolutely occurs when casting is included. I had a group of guys who would come to my range and shoot with me every Saturday. This was in '07. As the ammo shortage of '08 began to develop, I watched my group of shooting friends disappear one by one, because they couldn't find ammo and wanted to hold onto what they had on hand. The only exception was one guy who also reloaded. We kept meeting up and kept having fun.
For me, it's about the availability of ammo and not being at the mercy of elections, worldwide supply chain problems, pandemics, inflated ammo prices, etc.