For one, because it is 4 year old technology. It is proven and it works. I believe, while most things just work these days, my approach has always been to give something a while to be available on the market for all the kinks to get worked out. In addition, I received Apple Care free, for both displays... Plus I received an additional 5% off through the business channel. Did, I mention, that when I went shopping for this setup, a team of people helped me put together a system based around my requirements. While I consider myself technically competent, it was about the treatment that I received. If you could point me the direction of a Samsung or Dell store I would maybe reconsider. Also, the peace of mind that I have, knowing that if anything goes wrong with either of them in the next three years, I am less than 5 miles away from an Apple Store taking care of the problem. Plus when I walked into the Apple Store, they offered me a glass of Kool-Aid.