Yup actually 1k S19 pro will find a block every 10 days on average and will cost a modest 13M $ in cash.
Honestly, the amount of scam in this industry is beyond imagination, I just saw someone selling T9s claiming they can do 14TH, and he wanted the price of S9 for those gears, I spend a few minutes trying to explain to him that his gear is 9TH and can't do 14TH with air cooling, hardly doable even with liquid cooling, but he insisted that 14th = 14th, the crazy part is some people were defending him telling me the same thing.
Based on that logic I can sell my S9s at the price of S15 since they can "in theory" do 20TH, it's very sad that some people are too lazy to search the internet when it's free, and takes 2 minutes to know the facts.