Well, of course I'm the newbie here, so I don't know yet if maybe you
always answer in this sarcastic way, but I would like to point out that if smk (or others here) took the same attitude to learning English that you have taken to learning about wine, then he/she would just give up and look for a Phillipine food restaurant instead of trying to broaden their horizon(s).
Ordering wine is generally not too difficult- it takes practice, same as any skill, like a second language. You don't mind a little practice drinking wine, do you?
I'm no expert, so I stick with a few types that I like. If I find a wine list with
nothing familiar, then I simply tell the waiter that I don't know any of the wines on the list, but that I generally like (in my case) the Spanish or Italian types, and he/she should know what to recommend from that.
All that said, I, too, tend toward the cheaper end of the list, and yes, wines are almost always overpriced in restaurants, but I would be too embarassed to just blurt out, "bring whatever is cheapest" and look like a cheapskate and a boob. If the wine tastes bad, send it back or get a second opinion.
Oh, and thanks to Hedwig for pointing out my oversight...