I started this year with 9mm and have gotten the cost down to about 4.50/box. I bought a lee loadmaster progressive and once I got it tuned correctly it works very well. If your going to shoot that much in a month its well worth it to reload. I also have a single stage RCBS press for reloading just rifle rounds. In my opinion it takes more time to monkey around changing your progressive that it would to just use a single stage press. Again this depends on how much rifle rounds you plan to shoot etc. For me I just make hunting rounds so its not worth the effort to convert my progressive every time I need to load 50 or so rifle rounds.
As for progressive and pistol? Its worth it to reload!
my 0.02cents
I too have the Load Master and it is a great press for the $$$ I will admit that it can be a bit finicky at times but if you keep it clean it works pretty darn good and half the price of a Dillon 500.
I even used it for reloading my 300 WM till I got my single stage.





















































