Agreed. With Bitcoins current fees I am not sure they will do only Bitcoin, Bitcoin is more of a savings account as you keep saying, not for coffee, but maybe offer payment via a bunch of Tier 1-2 coins like Steem, Dash, Bitcoin, Monero, Decred, Ripple (snort-laugh, ok, not Ripple). I dont know much about ShapeShift.io but if they just did that that would be awsome, I think.