Speaking of Toyota cartridge filters, why are they so darn expensive compared to some high quality canister filters. I picked up some oil for my son and DIL, both have Toyotas with cartridge filters. Thought I would pick up a few filters to have on hand for some OCIs. Since I've never owned a vehicle that needs a cartridge type filter, I had never checked the pricing. Wow was I shocked at the price of the Fram equivalent PH10358 in any brand. This thing is tiny and there's really not much to it. Given the number of Toyotas, at minimum, that take this filter, you'd think economies of scale would produce a better priced filter. What am I missing here?