Although I agree with you zzyzzx, I also believe that the Accord missed the boat on other fronts as well such as:
*SUV sales
*The publics view of its style(I think it looks okay)
*The Accord has gotten more expensive
*The Accord does not offer AWD
*Also, the public may be missing the more powerful engine options of the previously generation(s)
The Camry also has FLEET SALES such as rental car companies & municipalities etc., which helps keep its sales numbers up, where as Honda does not. Although you may find Honda vehicles in rental car fleets or businesses, Honda does not have an in-house "Fleet Vehicle Sales Program".
Although the Accord still has decent sales numbers(in the grand scheme of sales numbers) for the U.S., its sales numbers are down drastically.