Correct. Occasionally, depending on where and how the Cliffy is mounted, it will have small piece of double-sided tape on the underside of the protector that helps keep it down on the playfield. This is easily reversible and does not leave ANY sort of residue on the playfield itself.

IMO, if Cliffy makes a protector for the game, and I own it, then the game will end up with it.

It has ZERO negative impact on price, is easily reversible, and actually HELPS in a re-sale because people can clearly tell that you maintain and take pride in your games.

Go get em' Cliffster!