madam- before i read your 2nd post i was going to tell you that the Nordstrom Savvy department had something similiar... but (!) so does the BP department and their stuff is always cheaper! hth!
I have seen skirts like this everywhere for a lot less. Target has some in white but not as long I don't think. I also saw some a t Robinsons May. I think that if you go out you will notice that they are everywhere (at least around here they are) and very reasonably priced.
anthropologie and urban outfitters had some similar. i'm not sure of the prices though.
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"i tell you one lesson I learned
If you want to be something in life, You ain't gonna get it unless, You give a little bit of sacrifice, Oohh, sometimes before you smile you got to cry.." -The Roots