If hubby balks, just tell him what full-priced fabric is running these days at the LQS. That will shut him up
I think that the reason some thrift stores are better than others is probably due to the sorters and volunteers who clean and price the stuff. When I volunteered for a local thrift shop, we all got first dibs on the stuff that came in, so it was picked through before it even hit the store. If you have a local thrift store that never has machines or fabrics or notions, chances are a quilter is working behind the scenes, haha!
Enjoy that fabric find my dear, you hit the MOTHERLODE!!!