+1 for reloading. I'm doing it right out of the gates.
I only bought 2 factory boxes of 9mm ($20/box). So far, I reloaded 2k of plated ($8.50/box) and 2k of my own cast boolits /w free wheel weights ($2.50/box). Shot almost 3k in 3 weeks. I shoot my hearts content without worrying about ammo costs, especially with cast. Another 3k of cast, I'll break even. After that, the savings will truly begin. I think I will shoot cast 90% of the time and save the plated for indoors only.
If you plan to shoot a lot, progressive is the only way to go. The initial investment is roughly $1.5k with all accessories but it'll pay itself in the long run. Your savings would = shoot more, unless you cast your own boolits. You'll actually save $$$. I personally can't shoot more than 300rds per visit and it only cost me $15 and likely 1hr of my time (casting, tumbling, reloading, chamber checking). My accuracy goes down to zero after 200rds anyway. LOL! I have the Dillon 650.
BTW, I recommend Sig P226 classic (22lr) and buy 9mm conversion kit right away or later (you're almost getting the 22lr barrel for free compared to just buying normal Sig P226 9mm). If you like more boom, you'll get bored of the 22lr FAST. I also have P220 classic and I don't have much urge to shoot it now since I'm shooting 9mm for the price of 22lr. I plan to reload 45 one day, so that is why I bought it and have 22lr to shoot if I feel the need to shoot something on the cheap but that kinda didn't go according to plan. I was skeptical about casting lead boolits for P226.