I just noticed that the gold Palace Tower room key cards being used at Caesars in LV are different from a few months ago. The new one is one the top and as you can see, they've added insert-arrows, removed the underline on the casino name, and no longer WELCOME you on the card. I have an extra to trade for a players club card (not room key) from outside Nevada.

By the way, these gold keys also serve as a line pass for the coffee shop.... a word to the wise.