I would like to have a couple more hubs. Do I wait for the C9? I'm not in a desperate need.
The C-8 hasn’t been officially acknowledged by Hubitat Inc. So it is likely many months away from large scale production and product release. And then, there’s all the teething issues that arise with new hardware.
I’d keep all that in mind before determining whether to wait or not.
Wouldn't that be a generation AFTER the C8? You might be waiting a really long time...
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I can't wait for the c10 neural implant with ocular drag and drop gui...
Any particular reason? Or just a hoarder like me?
us...
All of
Oops, yes, C8. All good points. Why wait, especially when my wife just loves when I get new tech! 
It's not an extra hub. It's a spare part.
This!
All snarkiness aside - If you plan on your hub being a longer term / important part of your home infrastructure then it's a very valid (and somewhat boring) reason.
The Hub Protect service + periodically updated inactive spare can greatly reduce catastrophic downtime.
Hub Protect will reach its full potential once Hubitat engineers figure out how to backup and restore the zigbee radio database.
And the @theBearMay will somehow integrate all this into his failover app, so we'll have real HA without a lot of contortions. And I'll install an F5 BigIP appliance in front of it to do load balancing so all of my IP automation will continue as well.
Getting a little offtopic but I thought the device ?ZDOs? were stored externally to the chipset so a standard backup/restore mostly works but in-place device re-inclusion is still necessary due to other information not getting saved? Is that right?
Sort of. I think the missing ingredient is re-writing the IEEE address of the hub's zigbee radio. At least that's what permits easy radio migration with zigbee2mqtt. Also, if you use @iharyadi's approach to use the same car arrival sensor simultaneously with two different coordinators (at different locations), you have to use coordinators that let you write the IEEE address.
FWIW
I worked selling Audio equipment for some years. We had one customer who would come in periodically looking at the current offerings. He would inevitably mention the new "this" or "that" coming out. Of the 4 years or so I remember, he never purchased anything. Seemed to always be waiting for the "next new thing".
Or perhaps he was just a looker.
I'm still waiting for some really important updates to tape transport systems before I get my next cassette recorder.


Got to go 8-track for the audio.
I'm still on reel to reel
Which IMHO is still the best for analog audio.
check the forum, saw someone selling 2 C-5s the other day
