I got real lucky on a very well taken care of Helix 2nd Gen, picking it up for $230 from eBay recycler. It's the 8GB RAM/256GB SSD version I've been coveting forever and it came with the Ultrabook docking KB with 2nd battery! The batteries seems to be decent in remaining capacity as well. I had the Yogabook C930 for about a week this month and boy, this old boy EMR classic is soooo much a better machine: The SoC is still comparable, double the RAM and SSD is better, the physical KB dock is better, but most of all the EMR feels so much better than the AES implementation in Yogabook with pretty damn coarse digitizer grid. I returned the Yogabook for the $650 I paid for it on sale and took a chance on a used Helix 2 for less than half the amount. Best purchase decision of the year.