One reason why advertising just doesn't influence me much is because once I find a product I like, I stick with it indefinitely, only changing if they discontinue it and force me to find a replacement. I very rarely try new products just for the heck of it. I've been using the same brand of toothpaste, deodorant, shampoo, soap, underwear, pants, laundry detergent, and pretty much every other product I buy regularly for years and years. I've owned Toyota Camrys since 1991. When it's time for a "new" car, I just go buy another Camry (and I've only had 4 in that 31-year period). When my everyday sneakers get worn, I order a new identical pair. Same for my running shoes. I'll shop around for the best price, but I buy the same style or the closest version they currently sell.
Advertising just isn't of interest to me because I have no intention of changing what I buy. If it works and I like it, I'm satisfied. I don't go looking for the newest thing every time.