Can't speak for
@Kyriakos, but for me, when it comes to the point where the discussion ends up being about The Money and it becomes politicized, and the advertising never stops...
...that's when the marketing works in reverse on me. There's a reason why I'm 20 years late to Harry Potter fandom. The relentless marketing when it first came out made me decide to never touch it. If memory serves, that was around the time that Harry Potter toilet paper came out.
The only reasons I ever got into Harry Potter were because A. It was a long weekend and I was bored, Space was running a Harry Potter marathon, and B. Maggie Smith played both Minerva McGonagall and my favorite character in
Downton Abbey, the Dowager Countess Violet. I was curious to see what kind of character she played in HP.
So I gave it a try. It took another year or so to really hook me, but it eventually worked. And to this day the only HP stuff I own are the DVDs of the movies and a boxed set of the novels (not one of the expensive sets). I've got a lot of screenshots and some fan art, but since I snagged those from various websites, they cost nothing. Ditto the fanfiction. There are millions of Harry Potter stories out there.
Now for Barbie... As mentioned previously, I still have the first Barbie I got, as a Christmas present in 1969. That's over 50 years ago. Does this mean I'll pay $$ to watch the movie?
Nope.