If you like the fabric, you should buy it.
I am not likely to be around in 40 years to worry about whether it will last, and I don't ever make quilts with the idea that it might someday be found in a museum somewhere. Once I give the quilt away, it belongs to that person, and he/she can decide to use the quilt however they choose.
Eleanor Roosevelt said "Do the best you can with what you have, where you are".