Perfect incremental health care reform analogy:
Years ago, as the story goes, Britain's Parliament faced a difficult choice. On the European continent drivers use the right lanes, while the English remained on the left. But tunnels and fast ferries were bringing cars and drivers back and forth ever more frequently. Liberals in Parliament thought it time to change lanes. Conservatives resisted; after all, Brits had been driving on the left since William the Conquerer's charriot. Parliament's compromise was to move from the left to right lanes -- but incrementally, on a voluntary basis. Truckers first.
On health care there is another compelling problem, the left lane is forming a huge sinkhole and soon there won't be a road. Fixing it now is a national imperative.