So what did you base your proposed retail price on? How did you arrive at that figure or did you just throw 3K at the first wholesaler and hope you would make a profit?
Maybe you went with ebay's completed listings? If the answer is yes and you purchased on the basis that you would make a profit selling on ebay just go ahead and do it, ebay has the big benefit of visitors - loads of them - so usually it's the quickest way to turnover goods online. You'll learn as you go but you need to recoup your cash to move onto the next stage.