The more you shoot the more you save. the larger or more obscure the cartridge the more you save, in some cases reloading is the only way to reload obsolete cartridges. I reload 9mm for my sig, it shoots most things accurately and the only way I have saved money is to buy in bulk and on sale. so buy 1000 projectiles (after you find out which ones your firearms like) 1000-10000 primers, and an 8 pound jug of the powder that works best for all your calibers (likely different for pistols and rifles). Keep all your brass, and all your buddy's brass. Range brass, if you are allowed to pick it up (ask), REQUIRES close inspection of every casing. I have has case head separations (2) from previously over pressured cases.
If you compete, or intend to, I recommend a fully progressive press to really crank out the finished rounds. if you have more time than money a single stage press is economical but depending on your process could end up being 6 strokes of the press per cartridge instead of one or two with the progressive.
I have a single stage press and have broken even on equipment cost but am still working to pay for the consumables 2 years and 2500 rounds later. its difficult because I still keep buying more.... shooting more... buying more....