oh my be greedy take it all. Than you can take your time and sort what you want. Than donate donate donate. Even sell some if you like.
I know I for one who are making quilts for veterans are always looking for donations and fabric people are willing to sell cheaper than we can buy them. Churches alot of them have ladies groups who make quilts for the homeless in just any kind of fabric that is donated to them.
Lots of way to part with what you don't need.
And to be honest Goodwill at least around here prices are crazy. They charge more than the discounts store charge for the fabric per yardage.
I use to danate to them alot till I seen prices of clothes there and other items. Now I donate to the Hospitals resale shop. Not only do they have really cheap prices they donate the items to the shelter here after a certain amount of time.