Earlier quoted context omitted.
hey, you just bought a vacuum cleaner? I know what you would really like! MORE VACUUMS! This is a common refrain, but I would be amazed if it weren't backed up by data and I anecdotally fit into the mold. If I buy a product that I really like, then I'm likely to buy it again to give as a gift to friends. If I buy something like a a vacuum and I don't like it, then I'm likely to buy a different model that better fits…
You'd buy a vacuum cleaner as a gift for a friend? I find that incredibly hard to believe but if it's true, it's very strange behaviour.
Also, I bought my parents a Roomba because I liked mine, so that can happen too.