Does that even work as an investment model? The poster child for this has got to be Uber, and they've shown that this is a lot harder to achieve than it appears.

The huge wins have all been IPOs where the business is still growing/trying to dominate the market, and not where they're in that monetisation phase. At least that's what I've seen. I don't think there's a single case yet where the "dominate and then monopolise" plan has actually worked?