I was driving by a guys house last year and he had some stuff sitting outside with for sale signs on it and had a set of studio speakers for $50 in excellent condition. I stopped and looked at them and one of the midrange speakers had a hole in it where one of his kids had poked it with something. I pointed it out and told him I would give him $30 for them since I had to buy another speaker for it and he sold them to me.
They are 16 by 30 by 12 carpeted boxes with 12 inch bass speakers, 5 1/2 midrange and like a 6 inch horn. I have a total of $100 in them after buying a set of new midrange speakers for them, hell the speaker grills alone are worth that much. They will rock your ass right out of the garage when you crank them up!
I have seen some for sale on Ebay just like them.