porn makers donot believe in hard-work. If they were to produce a six hour movie now all they'll do is fill up 70% of tape length with garbage dialogues along with lame ass guest appearances of you-know-who and behind the scene. Or they'll do copy pasting video from different movies and releasing a dvd under different name.

I don't think there is even one producer worth his salt capable of producing 6 hours non-stop hardcore. Noone goes off the stage even for a glass of water or to toilet but just keeps furiously fucking high on viagra for 6 hours constant.

Besides most people switch off the computer or DVD player the moment they're done jacking off and next time they start it again its not like they'll resume from the same place they left! so even if someone made a 6 hr movie doesn't mean people will actually watch every second of that movie.

But If they were making 6 hour DVDs, it'd certainly save a lot space in my footlocker!

But it is also a risk: if you're lucky your money is well spent on a 6 hour quality stuff. else as the economics of porn suggest- 6 hr movie will cost more money than a 2 hr movie so risk of money wastage is more. take the case of buying shoes made in china, you can replace them every 6 months but if you buy an expensive Adidas or Nike you gotta run it for a year or more.