I buy cheap wipers (about $3 each) to use on my car and replace them once or twice a year. I've seen other wipers for $20+ each. My reason for getting the cheap ones is that I live in Michigan and my wipers have to endure a lot of ice and snow, and I figure that they're going to get messed up every year and need replacing whether they are cheap or expensive.
Are expensive wipers going to stay in good shape even if they constantly get caked in ice and have to scrape frost off of my windshield? And that leads me to my more general question - what are the advantages of expensive wipers anyway?