Sure if money is no object. My answer would be a brand new spec doesn't have a large need yet in most cases. Products requiring it will take a while, brands and product availability will take a while before general market. Just like the others did. As time goes on it will provide more equipment options. Will be fun to see new uses and problems solved. On the downside it will add to the confusion for those who don't have a full understanding of it. Then they'll find forums like this where they ask questions like I plugged it in but it doesn't work what do I do.
I'm guessing you already knew that. But maybe others don't understand product development and economics
Regarding the switch choice. Keep in mind cameras are the "crack" of the tech world. You're talking about maybe six cameras but I'd plan for double that number. This stuff is very addicting. I'd be looking at a sixteen port switch just to be able to handle further additions.
If you do go 16 port make sure you look at the max power rating of the switch, some have the same rating as an 8 port which would mean that logically they may not be able to provide enough power all the devices plugged in at the same time.