Such sites usually sell at low margins to begin with, and have specials all year long. They might advertise them as holiday specials certain times of the year, but in reality it doesn't seem to have much effect.
What really gives you some boost in the winter is that new products are released more frequently, putting a lot of older parts on clearence.
<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>