I've still got a 99c rental credit on Google Play burning a hole in my pocket. When it finally hits rental, I'm guessing I'll watch it once and never again. I used to buy every movie I enjoyed, but I've increasingly found that once is enough.

Unless you are intent on watching it over and over, rent it to get your fix then wait a week or two and all the extras will be on YouTube. Villeneuve will likely release a directors cut a year from now and then you can repeat the process.

I'm pretty sure I read somewhere that Villeneuve said the theatrical cut was 100% his cut, and he won't be releasing any others.