I've actually considered this. The problem is that I just can't bring myself to do it. The main reason I would consider a Windows 10 tablet has nothing to do with productivity (microsoft office, etc). If I'm at home, I already have a powerful desktop hooked up to my TV and a wireless keyboard (dat couch set up). If I need to work when I'm on the road, I already have a thin work laptop for that.
My Nexus 7 served that I purpose so far and I've determined I mainly care about web browsing performance, battery life, software upgrades and screen quality. The cheap windows tablets don't have high-res screens and the battery life blows for the most part.
I thought about getting a surface 3 and running an Android emulator on it, but I don't think it's worth it in the end. By the time you get all the accessories it becomes way too expensive for what I actually need while not providing good enough performance. I mean why a Surface 3 when this exists?
http://www.microsoftstore.com/store...-Signature-Edition-Laptop/productID.313303100
For android/Apple devices, I refuse to spend more than $300 on a tablet because it's just a fucking a tablet.
Therefore, with all of these considered, the Asus Zenpad being the best choice for now. The only thing that it's lacking for me personally is it being a high performer and having a good battery life. The Shield Tablet would have been better, but the Zenpad definitely beats it on design and build quality.