If the safety margin doesn't depend on the size of the craft, I could conceivably see a single platform host a hundred modules from various different startups. So you'd only have one "satellite" in LEO, but it would have a hundred module slots rented out. You'd just have to pay to raise your module up to LEO and hooked up to it, for a 3 year lease, or something of that sort.

That's probably a startup idea in itself. The whole selling shovels in a gold rush, etc.