I have never rented a movie from iTunes and don't plan on it.
Just doesn't seem worth it.
No offense to you, but what is the point of creating a thread about this? At least throw us a bone and give us a reason why other than it is not worth it.
For sake of posterity, here is my take. Renting movies on iTunes replaces the need to go to the store or wait for the mail. Although, only being able to watch the movie for 24 hours is indeed a bit of a problem for me. I've rented a handful of movies, but one night the movie would not download due to my internet connection being slow. So I had to wait until it did download, which ended up being the next day. I was busy the next day and the day after, which is ok because the 24 hour clock doesn't start until you start the movie.
The kicker though is that once I did start the movie I fell asleep and before I knew it, the movie had expired. My bad I am sure, but I would like a little more control over this myself.
I think the pricing of the rentals is decent, I wouldn't mind them being a dollar less since it is not like iTunes has to pay rent on a buidling and such, but that's just me.
The chief argument I read in other forums is that renting movies sucks over Blockbuster and Netflix because you can't "copy" the movie if you liked it. My argument back is you can't copy the movie if you like it regardless because it's against the law.
I am a member of both Netflix and Blockbuster. I joined Netflix because they offer Blu-ray rentals. I'm canceling one when I move, most likely Blockbuster due to Netflix having a more extensive list of documentaries to view.