Although competitive, the regional rivalry between the A's and Giants is considered a friendly one with mostly mutual companionship between the fans, as opposed to Cubs–White Sox, or Mets–Yankees games where animosity runs high, though sections of each fanbase does harbor towards the entirety of the other. This, however, is limited as many people see the opposing team as no threat to their own; hats displaying both teams on the cap are sold from vendors at the games, and once in a while the teams both dress in uniforms from a historic era of their franchises. Many fans actively cheer for both teams when they are not playing against the other. A's fans cite the Giants blocking a potential move to San Jose as a point of contention.