I buy fabric and Joann's too because I can not afford the LQS prices. I made my 1st quilt from LQS fabric and it frayed just as much as anything I've seen at Joann's...I've even had to use to pretty thing material from Joann's because I fell in love with it and I just made sure to quilt it really good and get my seams perfect and I have never had an issue!
I love their sales
and those quilts are holding up well even after many many washes!