Part of the issue is that cycle lanes are so poorly designed and usually full of dim pedestrians and covered in junk/glass/dog poo, so even when they are there, most cyclists (myself included) are much better off cycling on the road. In the Netherlands you can quite happily ride between most towns and make quite good progress on cycle paths which are well designed and usually clear of obstructions.
Without wanting to appear too high and mighty, cyclists have just as much right to be on the road as a car. It's a shame that so many cyclists (particularly some local clubs) abuse this privilege and give us all a bad name.
Anyway, my own rant for today.... RIDICULOUSLY HIGH/STEEP SPEED BUMPS
Went to pick up my daughter from pre-school, and thought she'd like to be picked up in the Evora. However, I forgot the the narrow lane to the pre-school, which nobody speeds down anyway, has ridiculously oversized speed bumps, which are totally unnecessary.