I don't get it. Coinbase is more costly than using the underlying exchange directly. Is that unexpected? It's a convenience service. There are costs to this con

I don't get it. Coinbase is more costly than using the underlying exchange directly. Is that unexpected? It's a convenience service. There are costs to this convenience. The $2 "fee" looks like a 4% credit card payment processing fee, pocketed by Stripe or the likes, not Coinbase's fee.