Ignoring prices, what do you think about when a company uses a dominant market position in one area to establish one in another, eg Microsoft in 90s/early 00s?
That can happen but it also makes the company more venerable. They tie the success of all product to the same revenue stream. Its a legit strategy but I don't think it wins in the long run. Microsoft is a perfect example where they no longer bundle many products.
Its annoying for individual fans of the fields but it can is also is very, very unlikely to actually lead to market centralisation in the Marxist sense. Specially if you are looking at long run dynamics.