Earlier quoted context omitted.
You bought a used laptop which is slower, no touch screen, digitizer, pen, Windows 8, SSD, etc. That's like comparing an old Blackberry to the iPhone 5. There's really no reason to try and compare them.
I don't use a touch screen or a pen. It's fully supported on windows 8 and I stuck my Samsung 840 Pro in it. It does however have a decent keyboard, a trackpoint, 3G card, a service reputation and a bomb proof chassis. All of which reduce the ownership risk and make my day slightly better.
Simply put, the Surface Pro isn't designed for people with your use case. And more likely than not, your laptop isn't useful for the people MS had in mind for the Surface Pro.