Those were quite entertaining to read through!
It really made me think that not all product placement is created equal. Sometimes there are products that don't serve a purpose just sitting somewhere really conspicuously, but something like the Snack Packs in Billy Madison never once struck me as a product placement, they just seemed like a goofy thing that a kid would get really worked up over, and it ended up being one of the most quotable lines of the movie.
And that got me thinking about product placement in general, and how much stuff on that list is just products being on screen, period. I'm sure none of that ever happens on accident, but at least for me personally, it can contribute to the art to have a certain brand be present (like the Wayne's World example).
In my own life, there are brands that evoke specific feelings like road trips, or sporting events, or drunkenness, or LAN parties, or childhood in general and seeing a generic bag of burgers on screen doesn't have the same effect as seeing a bag of McDonalds... I mean, it doesn't really matter and this is all silly conjecture, but people's reactions to seeing real life brands on screen are quite interesting!