Bundles of some kind are an often-requested feature by both writers and readers. Something we're really mindful of: the direct connection between reader and writer is the magic that makes the whole Substack model work. So we would be very wary of a bundle product that abstracted that connection. However, I do think there are ways to do a bundle that keep that direct connection front and center, keeping the reader in control, and maintaining the writer's ownership of their audience. It's an interesting problem to think about!