Then you can sell new units at $420 (or even at a slight premium, because as you say they come with free PSU rental, no shipping costs, no maintenance, no in-home annoyance (for home miners) and even lower hosting costs.)
btw, please confirm that the PSU is a rental. If we own the PSUs (meaning we can have them shipped along with the miner), that changes things.
The mining costs per day should include the costs of the PSU. Even being a cheap one it'll hopefully last three years, and be warrantied for one. I think he was just overstating the fact that PSUs were included. I fully doubted that we were buying to PSU too, as the miners WERE priced great. The miner cost per day is way over electric use, so everything else is factored in.
Buying from bitmain shipping is included in the cost, according to everything I've heard. So no accounting for that please. I can't check now as their shopping cart ends up having a 502 cloudflare error for passport.bitmain.com(If someone is DDOS'ng that, well done protest!). For maintenance, I rather have the pleasure of changing things myself, then being stressed out that a miner needs something done to it, especially if it's down. As for the sound of the fan at home and the heat during the summer, yes that's an annoyance, during late fall, winter, and early spring, the money making heating is the best heating to have.
I really don't want a $40 power supply, and 100% think it's a rental. With one of these S5 at home, if it comes down to attrition, I'll use a different premium power supply for each side--the lower ones are building up as they just don't die out. And have no need of that shipping cost, if it fact it was included.
-----
I have no clue about that fund thing. I never noticed a promise of profit of 1% per month before here. But apparently, 400 shares at 1btc each can be obtained and earn at least 1% profit. I guess it's to fund more miners?