In the last 25+ years companies/organizations and individuals together certainly spent at least one Trillion dollars on advertising and marketing they're products and services with a .com at the end.
No other gTLD, ccTLD or sTLD is even in the same remote area.
I guess trying to swim against something like that possibly makes it a failure by default.
____________________________________________
"Unintended Consequences - How Dot Com
Became The Most Powerful Brand In The World"
"Since the first .com domain name (symbolics.com) was registered on
March 15, 1985, the largest advertisers in the U.S. alone have spent
trillions on advertising. In almost every ad their dot com web address is
promoted to the public. In the process they have cumulatively and
unwittingly built one of the most powerful brands on the planet.
Unfortunately, that brand is not their own; it is “Dot.Com"."
http://alagna.com/HowBrandsCanUseNew...uatters-v3.pdf