yeah, I think there is *some* place for them, but I think discovery being completely non-existant on the legacy internet made the importance of app stores that much more important
whereas in nostr the discoverability of what's "available" will happen much more organically
especially considering that every discoverability case happens through your social graph, which means that you'll be more likely to run into apps you care about because they will be organically curated by your social graph which, one can expect, have similar/compatible interests