Have just jumped from Blockbuster to Screenselect.
The former were as bad at mailing me the big titles as they were the more obscure stuff, though the flow of middle-ranking films was fairly steady throughout my erstwhile subscription. Unusual titles were more likely to be housed on faulty disks of plastic too.
Not so much the long tail as the big arse!
I continue to await the arrival of Netflix in the UK with interest.