Always directly up to date
Receiving content like magazines, brochures and catalogues by physical mail draws your attention automatically. From a marketing perspective this is highly valuable. Because whether you receive a catalogue from a furniture store where you've bought something small in the past, or the magazine you're subscribed to; as soon as the mailman came by attention is assured. Push Notifications are there to accomplish this effect, but then digitally: as soon as you publish new content users will be notified automatically.