A market place or zaps aren't nostr's only use case. There are many other incredible ways to use it. Thankfully it's not a pie and increasing its use as a marketplace doesn't decrease the other use cases. In fact quite the opposite, each use case helps the other one grow.
Discussion
I know that. Its why I use Nostr. But the crypto/zaps is a marketing / perception problem, not a technical one for those who don't want to use them. Most people hate crypto (just a fact of life because , rightly or wrongly, it has a reputation for scams and darkweb trading - because well, it IS used for those, regardless of its other merits) . Nostr has tainted itself by being fixated on that world. And now people just roll their eyes when they land ona nostr client and see the word crypto plastered all over the homepage. Or as soon as they try and figure out what the hell zaps are!