This also makes the exchanges a crappy place to buy BTC to gamble with, because you're getting dicked with a pretty steep fee.
I see right now BTC has fallen farther and is about $14.5k. It's going for $15.3k on Gemini right now and $15.4k on Coinbase. That's like a 6-7% markup. Yuck. Might as well just pay the Bovada credit card fee.