Originally Posted by vice86
I bought a Roku Ultra...do I really need that with the 900E?
No you don't really NEED a Roku Uktra. The built-in apps are more than adequate to accommodate most streaming needs. Here's the main reason I start cursing the 900E while streaming something -- adjusting the picture settings. This is where the current limitations of the set appear as the picture and sound start to stutter, and menus take a while to load. However, once you're settings are adjusted on the TV, you won't have to access these menus very often during streaming. Otherwise, the Roku may be a bit faster in responding to in app requests, but I find all the built-in apps plenty responsive. The main criticism is accessing the system menus while streaming.
What you also give up is how the Sony has different picture settings available for different types of Apps. There is a picture setting for Video Apps, regular apps, gaming apps, and perhaps a few more. The Roku obviously is limited to one set of picture adjustments for everything on the box. This may not be an issue if you use it exclusively for movies.
As far as limitations, the one issue so far is that the built-in YouTube app does not present in HDR. The Roku evidently does not have this problem, but frankly, other than demo videos of HDR, I'm not sure what I'm missing by not having it at the moment.
For myself, I do intend to upgrade my Apple TV as soon as a 4K box becomes available, specifically because I do use AirPlay with my other Apple devices. I did price the Roku Uktra box, and can't really justify spending any more money on it as a temporary fix to what at the moment is a minor inconvenience, especially since it won't serve my other needs.
All this is to say -- you don't necessarily need an external box at all, but if what I've said concerns you, and the Roku will serve all your needs, then why not if you've got the money?