A few years ago I had to replace the windshield in a Chevy Silverado. I called several installers and I was shocked at the HUGE variance in quotes. The last one I called was very upfront and gave me a price range of about $200 to $1200. He explained the difference is quallity of the product, the cheapest being made in Mexico, the most expensive was OEM General Motors. I asked if there was a difference, he laughed and asked if I minded possible leaks from poor fit and "wavey" optics. The pricey quotes people are quoting here are OEM glass, and a year ago when this post started, there may not have been any aftermarket glass available.