Coinbase is doing some raffle thing where if you buy 100$ worth of DOGE(now in their listing) by the 10th you have a chance to win 300k in DOGE(1 winner), 30k in DOGE(6 winners I believe) or 100$ in DOGE(6,000 winners). You should have an e-mail from them so make sure you click that an "Opt In" before buying.
I'm a sucker, I did it. Bought 150$ of DOGE at .37. Raffle winners announced on June 17th so I figure if I don't win I can probably sell the DOGE at that point for a gain or just hold and sell until it is a gain of whatever the coinbase fee was(3$ I think)
This is probably not for Coinbase Pro, just Coinbase. They are really trying to get people on that side of things since the fee's are higher.