Strange, I think it's the opposite. That's a lot of money for an i3 with little memory. It's cheap next to a MacBook Air perhaps, but still quite expensive.
* 1.4GHz dual-core Intel Core i5 processor
* Turbo Boost up to 2.7GHz
* Intel HD Graphics 5000
* 4GB memory
* 128GB PCIe-based flash storage
The base Surface is cheaper than the Air but the second tier Surface (The one with more or less parity) is $100 more than the Air.
Edit-- removed the word "Wacom", turned out to be a false assumption.