Those of us for whom convenience and durability are paramount will be pleased to know that Shimano are expected to release an 11 speed Alfine hub gear later this year. Not quite Rohloff 14 (or is it 15) gears or total gear range, but likely to be less than half the price – details here http://www.velovision.co.uk/cgi-bin/show_comments.pl?storynum=1083.
Now to check with Gates about sprocket availability so I can replace my chain with a belt www.carbondrivesystems.com