Personal anecdote I treated myself last year to some Nikes (Vaporflys) because they looked suave on a friend's feet.. Did 180km of training, maybe 5 weeks worth, and the soles utterly shredded. Couldn't put my foot down level, corners of the soles completely gone. Shoe store said that's what they're designed to do, no refund. Cost me about $2AUD per km. But it'll cost Nike a bit more than that.
All people I know who use them, just run them once before a race to try them out and after that they are like a very good suit which you only use for special events.
This is really independent of Nike but a thing with those kind of shoes.