Not sure where in Philly you might be or what quilt shops are near to you. Fabric row really doesn't have much in the way of quilting fabrics - mostly garment and home dec. But, you could hop the high speed line train over to Haddonfield, NJ and go to The Little Shop there. Nice fabrics and wonderful folks. Or hop over to Jersey again and take the River Line train to Burlington city. The Olde Quilt Shop there is also very nice with great, helpful folks. A bit larger than the Haddonfield shop. Those are two that I am familiar with and shop in when the opportunity presents.