You might be thinking, so what if the coin started out as a joke or you can't pronounce it? It's soared to 60 cents from under a penny just a month ago, and you don't want to miss out. Before you buy, however, below are some helpful things to consider. 1. Suspecting it's a bubble won't help you Most investors can explain what a bubble is: It's what happens when a good's price far exceeds its real value. And those considering buying dogecoin probably know that the digital token's cost, which is up by more than 12,000% over the year, isn't backed by much more than the hope that it will just keep getting more expensive.