Over the last seven years, Coca-Cola has spent an average of 4 billion dollars a year on advertising worldwide, aside from 2020, with only about 2.8 billion U.S. dollars spent.
And they are not the biggest, some others spend more on marketing! We can always learn from the biggest, by watching how they are doing it!
So if Coca-Cola "suddenly pulls the plug and stops spending on marketing" can it maintain its position in the market? I think the answer is no! Simply marketing is important! If they lose visibility and space they have almost everywhere some other brand will take it and many people will move to another brand!
It's the same with casino marketing! I guess the OP gave the perfect example, he mentioned two casinos that I totally forgot about! I played there in my early beginning, and from time to time after, but since they stopped with their advertising here I didn't visit them even once! As I said, I totally forgot they exist! Other casinos are more active in so many ways, so why would we even bother to think about Bitvest and 777?!
By the way, I bet they are the same as before! Without new games, bonuses... simply said without any development! I will check them later to see am I right about it!