Is there a price difference in content you can buy and own to some you can access via a service?
Not AFAIK in the examples I gave above, it appears to be a more universal move.
Using Amazon as an example… You can buy films on Amazon to watch. They are stored online and you access them via your Amazon account. As soon as you delete your Amazon account you can no longer access those films even though you paid for them.
Yes, sort of. But the difference being that (again, AFAIK) Amazon didn’t sell downloadable films in a more open format first (so I could use whichever player I liked for instance) and then decided to stop doing that and only let you watch stuff through there online service.