This all sounds more like an opinion that you're stating as fact. I own an SP3. It has it's problems: sucky trackpad, average battery life etc. But touchscreens are invaluable. They save me minor inconveniences so many times, that I will refuse to buy a laptop without it. Also, I really like Windows 8.1. Power users are perfectly capable of customizing the machine to get rid of Metro, and have shortcut keys etc., and once you do these things, there are simply more Windows software than Mac software in my line of work (mechanical engineering).
Tbh, if you're getting by fine without it, why deliberately look to find uses for it. Generally speaking, I hate trackpads, especially for things like dismissing message boxes or scrolling. So those two are where I use the touch panel the most.
