Your first mistake was in asking a member of the Guild who made the quilt if it would be all right if you sold it. You won the quilt fair and square. What happens to it after that is no one's business, not even the people who made the quilt. That's like giving the giver of a gift the right to say what you do with it. I was always taught by my mother, grandmothers, and great grandmother, that a polite lady thanks a person profusely for a gift, no matter whether they like the gift or not, or intend to keep it or not. The important thing is to make sure that you let the giver know you are grateful for the gift. After you've properly thanked the right person/people for the gift, it is now yours to do with as you please. If that means selling it, you are perfectly free to do so. I'd say you've bought so many raffle tickets that now it's time to see a reward from that. You didn't get the "gift" you wanted, so no different than exchanging a gift at Christmas, you are exchanging this "quilt raffle gift" for money, so you can buy something you either want or need. You are simply replacing this gift with something more suitable. It's that simple. Don't make a mountain out of a mole hill. And shame, shame, shame on that guild person who said she'd be "disappointed" if you sold the quilt! My Great Grandmother would have wasted no time in washing her mouth out with soap for behaving in so "unladylike" a fashion, and making the receiver of a gift feel badly about the gift. Yes, a very unladylike way to handle a delicate situation. A much more cultured and ladylike response would have been something like: "Why, my Dear, the quilt belongs to you now! You should do with it whatever makes you happy!" Her original response met her needs, without ever once taking into consideration your feelings, needs, circumstances or potential responses. I'm sure she's a lovely person, but she sure couldn't see beyond her own nose on that question, and shame on her.
Now you just go ahead and sell that quilt, and buy whatever you want. It's your right as owner. And get something really good, OK?