I would check, if I think the fabric is readily available.
If I've been looking for it and it's no longer readily available, I know I might not see it again so I'm paying the asking.
And if it means helping someone out, I'm in.
Right now I look at what's for sale, but my stash is too large so I have to really, really need it, can't live without it, covet it, dream about it, have to have it RIGHT NOW!