I've been watching your product and love the possibilities - I hate those old sprinkler controllers!!.
...but I just need an economical direct replacement for my old 6-zone controllers. I currently have 3 of them around my house as 18/7 wire isn't cheap for long runs, and would be a pain in the butt to run though attic to get to one location. There's probably a lot of folk that would like to simply swap-out older 6-zone stations with an economical replacement in the $100-ish range? Three 8-zones @ $180 or a single 16-zone unit with the wire cost and hassle wouldn't be a reasonable trade-offs for me.
Even better, a single central controller with small remote wifi 6-zone "switch" boxes at wire termination points would be a dream.
Maybe an odd case?