In the long run you get what you pay for. A well made t-shirt quilt will last a long long time. I had one made for my daughter for her graduation about 15 years ago and it has been washed, and washed, and washed. She loves it.
She takes it to soccer and football games. People see it and ask if she could make one. Since she is a chip of the old block, she is a good seamstress. She has now made about 8 for friends and quilts them on a my Handi-Quilter. In fact she finished one last week .