About 15 years ago Volvo had a 4 oil filter display that was in almost every dealer. They had a Volvo (Mann) filter, Purlator, Fram, and a filter I didn't recognize. The filter cases were cut vertically about 3/5 of the way around exposing the pleats, valve and all materials in the construction. Even someone will little or no mechanical knowledge could see the quality difference of the OEM Volvo oil filter over the others on the display. I would like to know why no one who builds quality filters like the ones you rave about on this site, don't set up a similar type of display in high volume retail and dealer locations. By showing the customer that you really do get what you pay for. The customer would then realize that a $3 oil filter is not of the same quality as a $8.00 filter. Why do people who build a high quality products that are superior to all the others don't show their prospective customers why their products are worth paying a few dollars more. If you sold 40 more filters because of the display you would pay for the cost of the display.