Worth the cost?

Ok, so, is a $50 bottle of wine better than a $10 bottle? Who says? Is it, as they say, in the eye of the beholder? I do feel wine is all relative; what one person may like, another may abhor. I think there may be $50 bottles of wine that taste like crap, and $10 bottles that taste out of this world. Well, I doubt that I'll be spending some $50 (or more) on a bottle for myself. Right now I'm content to explore the under $15 set. Maybe, if I turn into a wine nerd, I'll spend more.