We play with the "three card in hand" variant. In the end of the game, it happened that one player want to play his last card as late as possible. But his before last card fits good on his city with the builder. So he ask, if he may skip the double-turn to play his last card at very end of the game.
I don't see what benefit not taking the double turn would invoke. Am I missing something?
Just a shot in the dark here. We play holding three tiles also. When we play a tile on a feature with a builder we do not draw another tile for the extended turn - we play out of the remaining two tiles that we hold (this developed out of a need/wish to save time during the game). I can see a scenario where you might be waiting for some other key tile to be played before you would want to play either of your remaining two tiles, so you would rather hold them than play them.