My sister has an SP3 and likes it a lot. She's a student in college and I feel like this is a good niche for the hardware. The main draw to the Surface for her was the pen because of how well it worked compared to other options. She downloads pdf or ppt presentations and can annotate and take notes in class.
Is there any other hardware that can do this just as well? I think maybe the ipad pro but I have never used one.
I don't think it's equivalent to 3-5 cigarettes. An 18% increase isn't the same when the incidence rate on colorectal cancer starts off so low compared to lung cancer. This article is one that got posted on HN a while back.