I have been shopping for my daughter a used car and have been amazed at how many Acura and Honda 3.5/3.7 V6's are on the used market with WAY over the recommended timing belt mileage/years. I have not found a single one that has over 105K miles that had the proper timing belt replacement done at 7 years or 105K miles. None! Out of dozens, heck, at least a hundred and twenty-five so far! Amazing. I carfax many and most are serviced by Honda or Acura dealers, so it must be the owners cheaping out and disregarding the timing belt interval. Off course, I highly doubt that any salesmen tell them "hey, when this thing gets 105,000 miles, you are gonna have to drop $1500-$2000 to get the timing belt and water pump replaced. No record, no sticker in the engine bay. I've had several private sellars tell me that they knew nothing about replacing a timing belt. The car dealers get pissed when I tell them they should drop the price another $1500 to take in account the cost I would have to bear to get this service performed that should have already been done.