It's easy to forget how good we have it in the UK until you see threads like these. We've got 4 national networks, with about 99% population coverage each. I've currently got 300mins, 3000 texts and unlimited data for £15 ($25) per month, with no contract. And if I do want to jump ship, regulation ensures it's really easy for me to port my number across networks.
I guess that's an advantage of having 1/40th of the land area, but 1/5th of the US population - greater population density makes networks cheaper to operate!