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.

That is exactly what they’re supposed to do. They are marketed as racing shoes for a couple of marathons, tops. Everything on those shoes is designed to be as thin and as light as possible.

But that’s a thing with all carbon-plated shoes. You get 200-300km out of it. They are usually only worth it, if you run around a sub-3 marathon. It can be worth it for shorter distances but you should have someone looking at your running style because those shoes increase your likeliness of injury if your running style isn’t well or you can keep it up for the whole distance when you are getting tired.

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.

That's been my impression with all running shoes over the last few years. They fall apart. I bought myself some nice Reebok shoes and they disintegrated. The sole is gone holes develop in the sides etc. I guess they make them lighter and thinner. I would prefer something that's a bit more durable but that doesn't seem to be an option.

180km is pretty bad but you also trained in a race shoe that deliberately makes material tradeoffs to increase running efficiency.