Why don't you buy it???
Do you honestly NOT see the continued advertising, influencing, etc. that happens with every new product and such!?! It isn't like those things have exactly stopped, have they??
Not to mention 5E originating in the 40th anniversary and not 5E 2024 in the 50th!
These things absolutely had huge impact on the financial success of 5E and will continue to do so in all likelihood. Advertising, promoting, influencing are just good business practacies. And we know how well TSR ran it's business back then... ::shakes head in shame::
I'm not saying 5E doesn't have good design elements (some anyway), but the bulk of the design is based on prior editions and feedback gained from those editions.
I think D&D hits the target market and sells well because people enjoy the game. They obviously have built in advantages as well, but you can put lipstick on a pig and it's still not going to get invited to the big dance.
I assume other games could be just as successful with similar advantages, but the list of failed products is littered with products that had significant name recognition and advertising. Just look at some of the biggest movie flops of the past few years.
Advertising, name recognition does not guarantee anything other than perhaps an initial spike in sales.