If the intent of your winery Web site is to actually sell more wine (as opposed to tell the world how wonderful you are or show pretty pictures of your manicured vineyards), then take a look at this post from Chris Baggott on his latest experiment.
Go wide, with pages that are designed to be search friendly and target the exact terms people use to search with organic landing pages specifically designed for only those terms.
I think he's on to something here. Best of all, it doesn't take a lot of money to try this experiment for yourself. I'll be interested to see the results from his experiment.