Honestly, the Zbook x2 challenged my previous assumptions about what my deal breakers and compromises are. Things I absolutely will not compromise on: - 16gb ram. It's what I have now, so anything less is a step down. Also, I definitely need way more than 8gb. - 13 inch screen minimum. The bigger the better. - quad core. See ram for reasoning. Things I think are deal breakers but honestly, I don't know anymore - Digitizer. Wacom EMR all the way! Buuuut... maybe MPP or AES have finally reached parity? It doesn't quite sound like it, but I haven't been able to give either tech a full trial in their most recent incarnations. - aspect ratio. 16:9 is still mostly a deal breaker. The Zbook x2 is the only 16:9 machine I'll seriously consider, but only because it offers so much. 3:2 screen ftw! - fingerprint reader. Not sure what to say about this. I'm contemplating whether picture login is sufficient to replace a fingerprint reader. But I still think fingerprint readers are bomb. I want one. I love mine. If I'm going without, the rest of the machine had better be amazing. - user serviceability. /looks at market and quietly weeps/ My T901 would definitely not have met my needs as long as it has (and still does) if it wasn't super serviceable. Putting a quad core in there definitely breathed some new life into it. - Ports. This usb-c thing is both a curse and a blessing. It's an amazing port, but manufacturers have taken it to mean that it can be the only port. This port means that I have to factor in a $200 usb-c dock into the cost of a new machine. And if there's only one usb-c port, there is no way you can convince me that it's not a single point of failure. - dGPU. With Thunderbolt 3, I'm not sure this is as necessary anymore. Things I can compromise on that other people apparently can't - weight - battery life - screen brightness - screen resolution Things that used to be a deal breaker that I have given up on - pen silo Anything not listed above is a non-factor as far as I'm concerned.