Templates are a great way of creating some passive income (although it does take a little bit of work from your end).
From a business point of view, it makes sense to duplicate the site and then transfer it as there are no tools to automate this currently.
It can be annoying with all the duplicating etc. (Also theres the site invite link timeout to consider. 3 days I think, so possibly ensuring there are policies to cover that if it’s not accepted before it times out)
But definitely a great idea.