The Marlins are closing the upper deck of Sun Life Stadium:

Marlins spokesman P.J. Loyello said team officials decided it made little sense to staff the upper deck with ushers and security personnel for a section that attracted so few fans.

“It was an operational decision,” Loyello said. “We don’t sell a whole lot of upper deck seats.”

As a result, Loyello said, season-ticket holders with upper-deck seats will be “upgraded” at no additional cost to infield box seats, ones much closer to the field, for the 31 remaining home games.

The Oakland Athletics closed the upper deck of their stadium to limit the supply of tickets. The Marlins are doing it to simply save money.