It is crazy to me SF is considered not just a part of Silicon Valley but its core by a lot of people.

It was bad enough during the dotcom boom when all those companies only made software. Silicon Valley got back to the silicon (with the rise of handheld devices like the iPod and phones) and then the web server jockeys moved on to SF.

Don't get me wrong, they do real work. Setting up an ecommerce server is non-trivial. But it's also at least as close to K-Mart as it is to Microsoft.

And then came the mattress, razor, underwear companies. They just sell crap over the internet and that's a tech play? Wait? Now offering payment plans to buy stuff is tech too? Nonsense.