Richard Glasgow Wedding Dress

I tried on this beautiful Richard Glasgow Wedding Dress at Hannalore`s in Alexandria, VA. The style name was Courtney. It was a white, strapless A-line gown, that that very simple beading all the way around the top about 2 inches wide and the bottom beading matched the top. The back had buttons going all the way down the dress. It was marked for over 4,000. I am looking for this dress much cheaper or something similar for my winter wedding.