Is it possible to charge only for the creation of a subsite?

Hi,

I'm considering different options for my multisite network.
One of them would be to charge a fee when people want to create a subsite (for example 1€). Then they could decide to have a "free webite" (= no monthly or annual fees) or to go to a premium website.

So my question is:
Is it possible to charge people for the creation of their subsite?

Thanks!
Best Regards