The Lounge is rated PG. If you're about to post something you wouldn't want your
kid sister to read then don't post it. No flame wars, no abusive conduct, no programming
questions and please don't post ads.
Absolutely, but £5000 for a Marzocco[^] is a bit steep... and I'm not convinced the online roasters, specialist as they may be can do the roasting at a quality to make use of £5000's worth of coffee machine.
I have the Gaggia Classic which is, more or less, the same as the Rancilio Silvia but really want to do the upgrade for the temperature stability and heat exchanger or dual boiler, the missus goes for latte (and I enjoy making proper microfoam) so the single boiler, no heat exhanger machines make life a bit of a faff!
According to my oldest daughter, who is a barista, yes, skill is involved. Not as much as when she does hair, but there is a difference between her and people who don't know what they're doing. (With the irony that I hate coffee, so I have no way of knowing first hand.)
I went to a "Big Data" conference yesterday where I was told the "Data Scientist" is dead. There will only be Business Analysts and if they don't get the answer in 30 seconds they will move to another tool.
I did note it "was the answer" he said and not "the right answer".
I think also that the OP complains for all the wrong reason. Given that he confirms that one value is the result of a formula and the 170 is only the value shown, the result is to be expected. Will give the same result in pretty much all progamming languages and improper selected output/format options as well...