You will hear a lot of people arguing that reloading is actually much cheaper than buying, but I stand by what I said. Components aren't as cheap as you hear. Presses, even the elementary mec is $200, and a change of dies is about $100 If you go through a hundred shells every week or so, it will turn over to profit in a year, maybe.maybe even sooner. If you load steel or other crazy cost ammo, it's going to pay for itself much sooner.
If you are shooting nothing but simple trap loads, basic loads that can be had at lower prices in the us, reloading components and equipment won't return savings for a long time, unless you go through them by the case.
But, as I said already, if you are planning on shooting more specialized loads, or your situation is very different, I'm not going to try and guess what your costs will be. Just a wad and primer here will cost about 1/4 of the cost of a complete $5 box of basic target shells.
You are the only one who can judge what the cost level is. run an accurate price comparison between identical handloads and your preferred rounds, with all of them you plan on using.
IMO, you should go ahead and try it, if you can afford the initial startup, don't mind spending the price of bulk comonents, can find them easily, want to do it, all of the other conditions. You are completely right that there are conditions where you are that aren't applicable here, and they may get volatile soon.
Myself, I wouldn't touch the lee with a four foot cleaning rod. That's just me, you'll hear plenty of people who think I'm utterly stupid for saying that.
My mec is great, but the early mec didn't allow for changing dies, and I no longer own a 20. I now just buy shells as I need them, as just the press and startup costs would reach $300+. I do suggest that you get the conversion set at the same time, and if you think you will ever own a 20, just go ahead and pick it up at the same time.