I understand what you are saying but ultimately this will just have a chilling effect if this issue isn't addressed in some way. There will be a lot of people who pass up private rooms because they won't want to buy it twice. This will especially effect new players who don't have extra gil floating around. I wouldn't be surprised if there is a significant portion of the player base that chooses not to buy a private room a second time after they lose their first one, or ever buy one at all, and all because there is no guarantee that something out of their control isn't going to come along and deprive them of their investment.