Biggest difference between sales in the US and in Europe?

We have this running joke in our (European) office that people in America cannot wait to answer their next cold call.

In all seriousness, with the same amount of emails, calls and LinkedIn messages and with similar content, our US team gets a foot in the door with more companies. Are they just better sales people or is there a big difference in openness to new ideas/solutions.

What other differences do you see in sales on both sides of the pond?