Congratulations! I have never found any quilting fabric at any of the Salvation Army/Goodwill type shops. Last year I did find some drapery fabric. So I say you did Wonderful!!!! If your dh complains just figure out what all that fabric would have cost you at a quilt shop price. If you truely can't afford the expense then go ahead and sell some that isn't your favorite here on the boards. That way both your dh and those who purchase some of it from you will be happy.
But I say KEEP it if you can. You will be able to make gifts, or donate quilts or fabrics to worthy causes and you will feel great about the wonderful deal you got on the fabrics. Just enjoy your windfall!!!!!!!
Kat