I look at buying a dogecoin like buying one of those "joke-a-day" calendars. It's probably going to sit in a drawer in your desk, not actually used for its original purpose as a calendar, but you take it out every few months and rip off the old pages, reading the jokes. It's just a shitty joke book, made to look like a calendar, thereby encouraging you to destroy it and buy another one next year.

If someone were to ask me if they should invest in joke-a-day calendars, then the obvious answer is, unless you are interested in getting in the business of printing joke-a-day calendars, or selling them, then no, joke-a-day calendars are not an "investment".