So that's definitely the prevailing view held by the industrial miners I spoke with in South Africa. Yet these same guys are touting Bitaxe variations, some of which are more expensive than an s19.

People are definitely buying that stuff down there too. I was in a chat group where a bitcoin was sharing how he "added" this very miner to his "collection." I totally endorse what that guy is doing from and education a creating awareness standpoint. My point is, he could also spend a little less money, and actually decentralize the network. Also, for just a little more money, give some kid from the township a job that really makes a difference. I can confirm that there are people that do work in those communities for less than 5,000 sats an hour. An "installer" of automated home miners could make way more than this and still not add much to the ROI date.

But also, remember that this is running one miner only when the solar battery is charged at 95% of capacity. Right now, when it's cold and I run my s19s all day at home, they make about 4,000 sats each. One solar installer told me that a typical roadside stop (gas and food and stuff like that) in SA can be a 80-100 Kilowatt site. And they are usually wasting 60% of their potential solar power. That's way more than one s19.