I think because doge coin is fast for transactions and cheap, it might be used to and from from exchanges so people can do arbitrage trading on the cheap. I was thinking this as btc and eth prices for transactions rise. I do not think though that doge coin can be above one or two cents and may be used by various twitter and youtube personalities for pumping and dumping for their own financial gain. Iwas always meant to be a gimmicky coin and to bring new people into crypto currencies but other than that is there any other real world use for it?