It's been really slow for the past few years... Before the economy went into a tailspin, I'd say 90-100% of my items would sell each week, with lots of bidding wars... Oh, those were the days, back when selling was fun. :-P
Since then... Meh, maybe a quarter to a third sell each week, if I'm lucky. Sales are inconsistent, there's a LOT more buyers scamming people (it seems), and price paid/demand just isn't what it used to be... the market is now overly saturated with the items I sell, and ebay/paypal and shipping fees keep going up... I'm lucky to break even any more. :-/
I had a Christmas rush, then it was quiet for awhile, then a nice little rush last week - I'm thinking along the same lines as others here - that it's due to tax refunds. Not expecting things to turn around though, which is why I've slowly cut back on sales and turning back to just buying for myself, and only selling pre-owned items here and there whenever the closet gets cleaned out...