What is the highest level of education you have completed?
That doesn't matter. I have a friend who just finished grad school but sends emails out with no punctuation and no capitalized letters. He reasons, "Microsoft Word fixes it automatically so I don't bother". So yeah, that was money and time well spent.
Back on the original topic, I spent close to $1,500 but a lot of that was re-purchases due to mistakes (e.g. wood), over-purchases (e.g. too many buttons, etc.) and some basic power tools. Real cost was closer to $1,000 to $1,300.
I moderate at a Home Theater site and they have rules about grammer and are very strict when it comes to swearing and off color language. We give a few polite warnings, but if someone continues to do it, yeah they can get the boot. Swearing is just about an automatic ban, as is starting fights.
I have somewhere in the mid $800 for my cab so far, but that is about to climb because I'm working on a modular cp, landed a couple of Space Guns, will be adding some custom light guns... I think the little things and extras can drive the price up more than a basic cab and cp.
I don't count tool purchases though in the cost of things unless it is only going to be used once and specifically for that project.