Better-educated workers form many more long-distance job matches, and they move more quickly following local employment shocks. I argue this is a consequence of larger dispersion in wage offers, independent of geography. In a frictional market, this generates larger surpluses for workers in new matches, which can better justify the cost of moving - should the offer originate from far away. The market is then "thinner" but better integrated spatially. I motivate my hypothesis with new evidence on mobility patterns and subjective moving costs; and I test it using wage returns to local and long-distance matches over the jobs ladder. [This paper supersedes an earlier (2015) version entitled "Why are Higher Skilled Workers More Mobile Geographically? The Role of the Job Surplus" (CEP Discussion Paper 1338). Additional support was provided by the Royal Economic Society.]