tracyfearson :
As configured above with keyboard: $678.99
iPad Pro (only 64gb) with keyboard: $808.00
Surface GO = more storage and saves: $129.01
People complain about the prices on the Surfaces devices all the time (oh the keyboard should come with it, oh the pen is expensive..) - but the Surface Pen is the same price as the Apple Pencil ($99) and the Surface Go Type Cover is actually $60 cheaper than the Smart Keyboard ($99 vs $159 - provided you compare the Black Surface Go Cover to the Black Smart Keyboard).
So that gives you an out the door price of...
Microsoft - Surface Go (128GB), Type Cover, Pen - $748.98
Apple - iPad Pro (64GB), Smart Keyboard, Pencil - $961.42
So the Surface Go is then $212.44 cheaper, has double the storage, double the RAM (iPad Pro is 4GB) and a back lit keyboard. The iPad Pro does have a half inch bigger screen, so there's that, and a slightly more standard aspect ratio.
What will always bite Microsoft on the Surface Go? People compare the Surface Go to laptops and - because it's Windows and supports Windows applications, external monitors, the full range of hardware peripherals, a mouse, etc. - use it like such. Including things like running laptop designed battery tests and benchmarks on it. No one runs those things on an iPad Pro...because it's iOS and those things won't run. They compare the iPad Pro to a nice tablet - which it is - without a mouse and running tablet apps.
And maybe that's the answer - if you're an Apple person or you want a supercharged tablet that can sometimes do light productivity stuff, get the iPad Pro. If you're a Windows person or you want a (non-gaming) laptop replacement that can also be a supercharged tablet, get the Surface Go.