The only sale I can imagine would involve a very wealthy couple where the wife decides that her husband - who perhaps fancies himself as a bit of a handyman e.g. prepared to change a fuse, tighten a screw etc - should have a nice toolkit for his birthday. Said wife wouldn't know what e.g. a decent Allen Key should cost and thinks she has stumbled on a bargain.
Husband then gets the present and of course the price is not mentioned. He puts it in the garage as a just in case thing and both are happy.
I cannot imagine for one minute that anybody who has ever bought a set of half decent screwdrivers or bits in a DIY shop would even think of coughing up that kind of money. Even if you bought every tool yourself and bought a bit of walnut just to make the box, you would surely be coming out at less than 10% of the asking price
read the full guide. There's one born every minute, as they say.