Funny Whoopty I have expierenced what you wondered. A couple of years ago I purchased a HP Split. I was doing alot of traveling at the time and I wanted something light weight and still had enough power to do what I needed to do.
Well I never "split-it" and used it as a tablet, who knows maybe one day I will. But in the end it was too small for me to be really comfortable for long periods of time.
Fast forward to today and I just purchased a large laptop, it might be a pain to transport but at the end of it all I am happy I have it.