I didn't really see a reason why it should be any less successful than owning the browser, even if the tradeoffs for 3rd party ads and domains are a little diff

I didn't really see a reason why it should be any less successful than owning the browser, even if the tradeoffs for 3rd party ads and domains are a little different, then two people each tried to get me interested in the API to help them.. Amazon couldn't commit to letting anyone else make the thing useful so it is as useless as any of the current walled gardens would have been if they didn't start from open ecosystems and copy or allow whatever was good for a few years before shutting down all freedom and things that are interesting.