I guess "a lot of play" is relative... In the recent example I'm pulling from. The condition of the bulk of the tables was brutal. What wasn't terrible were merely passable. They had not been refreshed since before the same annual event the year before. Since my exposure to this room is nearly on an annual basis. I was in awe of how bad they were considering the effort that was made the year prior. The two tables that were passable were in a different section of the room, and it was very apparent that the traffic they saw was considerably less and 'cherry picked' by the owners.
I don't know how often room owner "should" change their cloth. As a player I'm going to complain unless it's near perfect...lol. The only somewhat unique characteristic of a Diamond is the deep shelf. With all other things being equal. I wouldn't discount their product because it warrants a little extra attention.
