Gee, after reading this, I'm glad my brother won't throw a quilt out. He asked me to make him one for his bed after his divorce. I asked what happened to the one he had and he said the ex took it. I liked to have had a fit. I told him that was a wedding gift that our grandmother had hand pieced and had quilted and she had no right to take it. He talked to her and she has put it up for one of the girls to have when later. I did make his quilt to his liking and to make it fit as the spread for his king size bed.

Just because he didn't care for the one your aunt made doesn't mean he may not now appreciate one from you, especially since he seems to be hinting.
Lots of times we grow in our appreciation of handmade items as we mature.

I would go ahead and make him one but ask if he would be willing to pay for the fabric. If he agrees to pay for the fabric, he might treasure it more than he did the one your Aunt made for him.

AND/OR, give him some input into fabric and/or pattern choices. If he has some ownership in the quilt design, perhaps he will be more likely to enjoy it.

I agree with RGAY. Nothing makes a person appreciate something like having a stake in it...especially if they have to pay part of the costs. I'd also have him choose colors and give him the choice of two or three pattrns that you like to make. Just my opinion. It might also be interesting to ask why he wanted to get rid of your aunt's quilt. That would be a worthwhile conversation and would help you make your decision.

Nope, at first you don't appreciate, then forget it !!! My MIL made a king size for an idiot SIL . Beautiful hand made totally. When we went to visit about 4 or 5 months later . She had parked her van on top of it to catch the oil. She really didn't like to clean oil off the concrete. I could have cried.

Teach him how to make a quilt from his old shirts. He will seriously love it!

If he wants one let him buy all the stuff. He may appreciate it more that way

Oh my goodness, that's got to be the most horrendous unappreciated quilt story I've ever read about!

Cringe!!

I would ponder making him a quilt but I would also bring him in on the process if I could. Allow him to experience picking patterns, colors, cutting and relate this to a skill that he has such as auto repair, building, plumbing, dirt bike racing, hunting or such. He is showing you that he has preferences, not your aunt's quilt, but he likes your work. Use this time to teach him how some of the knowledge and skills are involved in quilting. I guess in teacher lingo this is a "teachable moment". Don't allow him to continue in his "stupidity" help him to understand the value of your quilt as well as the quilting of others even if we don't like their work we can still value their work. He doesn't need to learn HOW to quilt but learning ABOUT the quilting process could add even more value to your work in his eyes.