That's why I bought all that crap in the first place!
Theater experience can't compare to the comfort of my own home. That's why the only people going to the cinema are teenagers and 20-somethings on dates. And that's why movies geared towards them are the only ones that make any money at the box office! It's that simple.
Add to that the fact that it’s cheaper to buy the DVD than to pay for 2 movie tickets and the fact that the “theater experience” has steadily gone downhill for years (let’s pay $20 to watch irritating commercials for 15+ minutes before the show!) and yeah, it’s no surprise the grown-ups prefer to watch at home on their own schedule even if that means waiting a few months.