I know several people who keep and use their old presses and equipment. They don't see a need to upgrade if and when a new press, or powder measure, or electronic scale, etc. etc. hits the market. They might upgrade if something finally wears out and needs replacing, but until then they'll keep loading with the old stuff. Lee still sells their Classic Lee Loader
, for those wanting the bare minimum in equipment cost.
Some will pay for the convenience items or buy a second or third press to make the process easier or faster, and anything saved will get dumped back in to the equipment. Not everyone who reloads will follow that path. Reloading, like any other hobby, can be expensive especially if someone goes overboard on all the accessories or if Hornady, Dillon or RCBS tweak a press or die and they think they need the new/updated version, but it doesn't have to be.
The money saved could build up if anyone were willing to actually put it in a savings account or shoe box in their closet. It could also afford someone a new rifle or pistol, or more frequent range visits if that's where they choose to use their funds. What someone does with the money saved on reloading over buying loaded ammunition is up to them. If it's put right back in to reloading, then it certainly isn't saving them anything.