Quilts wear out, LQS fabrics or not... Others are correct, it depends on how they are cared for and used. I made one of my first quilts 26 years ago...it's been a dog birthing bed, camping blanket, couch cover & who knows what else...It's a Drunkard's path made with swap fabrics and unbleached muslin (what I could afford). I stacked 10" squares and cut a curve out of them...yep...no pattern...thought it would work to do a sorta stack n cut, then separate and sew pieces together...I did have to cut the blocks down...I used my new to me serger to assemble..ok, I didn't know what I was doing..lol...but that quilt is still together and going strong (hand quilted). I have quilts from the 1910 era...worn in places, but repairable...then grands have quilts for 6 months and need another...all in how they are handled really