Thanks for some of the replies.
I was chatting with a member last night and wonder how typical he is. He is on a good connection, but not exceptional. In a few hours every night unless the download limit is very low he can DL 10 to 20 movies in a few hours. So signs up for a month, cancels the rebill, downloads as much as he can in the month and then goes away for a few months.
So is it a good idea with todays sites to have a big site, or better to have lots of medium size ones and cross sell and feed from one to the rest?