I have also tried touch on the 20" Sony all in one, and I thought it was fine. I am not saying it is suitable for all use cases, but if you are a single screen

I have also tried touch on the 20" Sony all in one, and I thought it was fine. I am not saying it is suitable for all use cases, but if you are a single screen desktop user, it really isn't a horrible experience at all.. Provided that you look at touch as a supplementary interface as opposed to a primary one. I used to mock the idea of touch displays with Windows 8 myself. When I actually tried it, I found that my initial assumptions about how bad the experience would be were misguided. Of course, YMMV.