RST has always been expensive. Now barriers to entry on reloading are prohibitive both in terms of equipment costs and component availability.
I got into shotshell reloading by accident. I was in the manager's office of a John Deere dealership one day when I noticed a cardboard box or two containing a single stage reloader, powder, scales, powder dispenser, shot, wads and primers. I asked about it and he said he used to reload but had quit and it was for sale. I bought it all for $40, and was in the reloading business. All I had to buy, in addition, was a reloading manual.
I say that to say that it can still be done like that. Used reloading stuff is everywhere. Jump in, the water's fine. You don't have to spend $1000 to get started reloading low pressure shotshells.