No is my first reaction. For me personally, they are of little benefit and you have the disadvantages that are often cited (in the car door zone, a place for debris to collect, ambiguous and dangerous situations at intersections). However, my opinion is not a particularly strong one. I don't think I would ever lobby for bike lanes, but neither would would I lobby against them since some people feel more comfortable in a bike lane and I can ride in the regular lane when necessary as I did last night when the bike lane had snow and gravel pushed over by the cars and plows.