We're not experts, but we're pretty sure it's a sign of great marketing that, if you mention "scrap metal" to a Houstonite, that person will immediately think of $2 bills. Why? Because for thousands of years now, we've been exposed to the spastic owner of C&D Scrap Metal — or his kids, who seem to be pretty good sports — telling us, "We'll even pay you in two-dollar bills!" By now, after eons of conditioning, such an incentive makes perfect sense. But if you stop and think about it, there is absolutely no good reason for anyone to be excited about being paid in discontinued currency. Yet, the whole gimmick totally distinguishes C&D. If you watch enough of these ads, you might start expecting every other business to give you change in $2 bills, or hell, Susan B. Anthonys. Truly revolutionary stuff.