There is nothing more amazing in someone's kitchen than an old butcher block that has been through many hours/days/years worth of cutting--like at a butcher's shop or restaurant. The more the swayed back, the more the character. Yet the wood still stands through time. They're a hot commodity and very picked over at antique shops these days.
Andrew and I walked in a house not too long ago that had one. I was gripping his hand so tight when I saw it. He kept asking 'what' all confused. 'That block! It's an old butcher's block.'