Dave,
I'm a little confused... you mean the same store charged you different $$ depending on whether it was for the bike or the SUV, or different stores charged you different, the motorcycle store more?
If it's different stores, then it's marketing: you expect to pay more for a motorcycle filter, and they will happily meet that expectation - LOL.
There may be more to it than that, the auto parts store buys more filters, so they will pay less.
Yes, the same store. I just never got two at the same time and it finally dawned on me that me I've been paying different prices.
I'm going to go in and get one for the Concours and one or the 4Runner at the same time and see what they say...this could be fun...
I'm gonna have to try this tomorrow, when I go into Advance auto parts, ecause I still can't get my head around how the "price" is being arrived at when at the counter paying...
I can only assume it is because people today, walk in, and up to the counter, and ask some kid for a filter to fit "my 4 Runner" or "My ZG1400" motorcycle, and accept what the "kid ..." tosses on the counter and rings up...
I may be old, but Caveat Emptor, and Semper Fi, both are something I cannot dissuade...
I walk in, go to the oil filters, pick up the book or books there, look for the number, and pick it up and walk to the counter.. it is a freaking oil filter, man are people that simple that they cannot look up a filter in a book, and buy it? Without asking someone to look on their computer screen and give you 17 different choices and prices.....?
What is this world coming to....?

Semper Fi kids...don't buy land in florida, or don't buy a bridge.... just saying.....
But, ShamWow is always a good deal...

In closing, here, have fun with this list.....
http://www.oilfilter-crossreference.com/convert/Wix/51358