I'd be very surprised if this bike wasn't a good investment for the future.
There's not a lot I can add to the blurb, but surely this bike is a shoe-in for a berth at somewhere like the Barber Museum. The rich, I keep hearing, are getting richer, so there will be more collectors as time goes on. When fossil fuel burners are outlawed (it's coming), bikes with history will be in demand.
You can read about Bryan Smith and his era-defining Kawasakis in Sideburn 7; The radical skinny Crosley Kawasaki in SB23 and and interview with Bryan, conducted on the eve of his 2016 season victory at Santa Rosa, in Sideburn 27.
Thanks to Norm Motorcycho for the tip-off.