Its also the season. Right now it is the slower season on ebay. Sales are always slow this time of the year. People are still paying off credit card debt from the holidays and just dont have that much money to spend. With the fact also that so many sellers are selling the same thing. Demand for that particular item may be down as well.
Things generally pick up around april every year when most have thier credit cards payed down a little and it gets warmer outside putting people in better moods. I generally take a vacation in march and dont sell much of anything on ebay as for the last several years march has been our slowest month.