I don't get it
Depends if you like riding rigid I guess. Where I live (surrey hils) the terrain is generally pretty smooth, the jumps generally quite small and its short ups and downs so after riding a number of bikes, full sus and so called hardcore hardtails, I have more fun on the rigid. As an extension from that the jones with a fat front is the most fun rigid I've ever ridden, quite happy chasing after mates on 4-5 inch travel bikes, slower in parts but I'm not racing and sure as hell couldn't care less about strava. Plus I can get it out the shed and put it back in again without being frustrated that my rp23 has cavitated, the fork crown is creaking, my seal change hasn't been done etc.....
Rocket dog - yes it has a works chain ring but I know a couple of guys that have been riding xx1 for ages and they drop their chain when the ring has worn. Given hat it gets thrown around on the rigid I've gone for security. Appreciate aesthetics though.
And yes, fat 26" front, 29 rear