My 5-year old Neato XV12 is finally dead, so I’ve been looking at what’s available these days. I saw the D3 at Walmart for $199. A 3-year warranty is $22 extra, and it came with free next-day shipping for me.
https://www.walmart.com/ip/Neato-…CyOC2fx0M0
From what I’ve read, it’s essentially the same as the D5 but with a lower-end battery and brush (both of which can be upgraded), and no side brush.