I decided to return Surface Pro 3. Not just because Pinball FX2, but it seems many games and even some apps cause the machine to throttle. It is rather evident to me that this chassis design was probably for the Intel Broadwell series and due to its delay they decided to push it out with a handicapped Haswell. When it gets hot, I experience slowdown in games, occasional game crashes, and in one case even part of the touchscreen stopped responding. I don't think I have a defective Surface - look at all the throttling threads when this machine is put under load.
In summary, fantastic design but wrong CPU choice. They should have lowered the price and put an Intel Atom Bay Trail in this or only offer the i3 model, as the chassis/fan design cannot handle i5/i7 haswell under sustained load so why charge people for a premium i5/i7 CPU that will be severely throttled under load? Seems like you are just charging for specs!