Does anyone have an idea on how much a pair of Boston Accoustics 51/4" with 1"inch tweeter seperates are worth used? More specifically, they were used for about 6 months and then put back in the box and sitting on a shelf in my closet for the last 3 1/2 years. I was planning on using them but a friend is interested in buying them. I just don't know what they are worth. Any ideas? Those who think money can't buy happiness don't know where to shop.