No I haven't!
Got a link?
Perfect example.
My local store started carrying an automotive product called Sea-Foam at 5 something a can.
This was like HALF what the local parts stores sold them at! Guess what? I got into the habit of buying it there from then on.
Next thing I know, it's over 9 bucks a can!
They get ya buying crap there with their prices, then raise em up slowly and quietly.
I see it with stuff year after year.