Reloading has been the cheapest and yet most expensive hobby to have. I started with 40 S&W and 233 Rem for my pistol and rifle. I then started adding calibers, and rifles to my collection. well I am retired so I was able to shoot at my will, which added up to a lot. I got most of my reloading gear through my local dealer (RIP SIR), who offered me used deals from his network.
That included a Dillon 550 semi progressive press, wow talk about energy and time saving, so I spent more as i was certainly saving money. Then I slowly became a brass goblin at the range, because I became aware how many other shooters don't reload and threw away 1ce fired brass. Well I found a guy who buys brass cases, so I swapped all the at the what I didn't shoot for stuff I did, now having all that brass empty, would be a waste of resources. So I invested more into reloading bang buttons, pixie dust, freedom seeds, yup saving money.
I started adding calibers so I needed 2 sets of dies, one for the single stage the other for my Dillon. A few friends asked if I could load some ammo for them, no money just use of my gear. So they invested in my addiction, thanks. Then a friend asked if I'd like a super dooper press
and sure, and saved more money by investing, selling my Dillon 550 to get the 1050..... Well it was the case of the overly complicated bong, I soon sold it and got 2 550 Dillons.
Then I had the good luck to have a massive flood in the town I live in, good friends accepted me into their house. In return for good karma, they cursed me by gifting me a near usable antique rifle. All it needed was a simple modern centerfire modification and ammo. well the ammo was a 2 year process to figure out how to make the brass from a slightly less rare case, then find black powder. easy so far eh? Well then came the bullet, I knew it would be a nightmare. I found a half dozen, and found out he cast them himself. Well now I had an entire new skill I needed to perform. So I started casting them after invest.... i mean saving more money. .41 Swiss... then added .303 for Brit and 7.62x39. then 9mm and ooowww powder coated, oh yes another new skill added. then added shotgun reloading more money saved... yea right. new casting molds buckshot and slug. More savings opportunities!
Yes this has been the cheapest most expensive hobby anyone could have, save Formula 1 practitioner