Similarly with beers, finding out what beer someone is drinking, and what they think makes it different from other beers (and if its one I have tried before), then trying it, seems like a good way to try new beers, but so far I don't really like any of the ones I have tried, (~20+)

I still try like this because I have never been sure if my taste preference will change, or if the different wines will taste better.

Mostly I find a few friends who drink wine to go around trying various wines, not sticking to the same ones, although I don't exactly follow this very closely, I might start keeping a list of types of wine I have tried..