I mostly agree, but you're forgetting an important part of the tech presence: a lot of those companies hold public parties with free beer and food. I've had ple

I mostly agree, but you're forgetting an important part of the tech presence: a lot of those companies hold public parties with free beer and food. I've had plenty of VC-subsidized consumables through the years (though I don't know that I could remember a single one of the sponsoring companies... so maybe not very effective advertising).