If you are the kind of person that want clean wood, you might want to coat the wood with varthane or clear nail polish so the ink won't stain the wood, because I guarantee this will happen again.
Personally, I don't care if the wood is stained. I gave up on clean wood long, long ago. As for reselling, I rarely sell my stamps and if the wood is stained it means I really use it a lot and wouldn't sell it anyway. In my stamp room, clean wood is either a brand new stamp or one I don't like
