A great business model for Nostr would be to sell boxes. You just plug it into your wall, you get a full featured blossom server and nostr relay.
You access a UI on your local network and manage your photo library, music, videos. Some of them are private some are publicly available, some are restricted to a group of npubs, hell some are behind a paywall !
You can also navigate the nostrverse, have private DMs and so on, via your favourite Nostr client, or one that comes with the box.
You can expose your blossom and relay via your own domain or a subdomain from the company selling the box.
Everyone has its own relay running and nostr becomes your cloud and your digital identity.
I'm sure this would sell like hot cakes, call it lifebox or smth. Any content creator would love having their digital identity in their home. It's a strong signal for censorship resistence and taking full control of your digital content and identity.
Having your own relay also fix the lack of privacy for NIP-04 DMs, if read access for kind 4 events are restricted to you.