I've never been a fan of Family Dollar, it just doesn't appeal to me, as I think a lot of the prices are the same you can find anywhere. We have Dollar General here as well, and I don't care for them either.
I'm a huge fan of Dollar Tree, however, and hope this doesn't change them in any way. I think it might be time to hit the Dollar tree and stock up on some cards and such, just in case there are changes.