I guess the topic writer here, has sufficient knowledge about mining...
I have just one little question, what is the latest mining machine, model and version?
What is it present cost?
Thanks
I'm not big into ASIC mining but I'd imagine most people go for L3+, S7's, or those A6 Avalon setups.
Take a look at bitmains website as well as parallelminer.com
https://www.parallelminer.com/product-category/asic-miner/