I didn't take any of it for product placement and doubt that they were in because they were paid for. I think that they were in simply for nostalgia and era authenticity. For example, the season was set in the Summer of 1985, so the bit about New Coke (which debuted in the Spring of 1985) was a natural inclusion to provide a slice of 1985 culture, just like Back to the Future was. I found it pretty hilarious and enjoyable to see the debate over New Coke play out between Lucas and Dustin. Also, it's not like you can buy it anymore. In fact, many of the products and brands that were shown aren't around or relevant anymore. For example, I can pretty confidently say that no one paid for the inclusion of Waldenbooks, which went bankrupt 8 years ago, or any of the cereals that were discontinued 30 years ago. If the producers had wanted to, they could've saved money by replacing those brands and products with ones that are still around and willing to pay. Anyways, I'd usually be with you when it comes to product placement, but I love it when it comes to this particular show because it adds to the authenticity and nostalgia by highlighting what was around and popular in the 80s.