What’s cheaper?

Losing the ‘free’ ∆v from being far from the equator?

Or shipping a rocket and everything else all the way down to the Caribbean?

Also, there’s the pure national security aspect of it.

This’d be soveriegn Canadian territory, and if Canada is looking to build up more of its own domestic space industry… now that the US has proven to be between an ‘unreliable ally’ to ‘potential invading and occupying force’…

Nova Scotia seems like a pretty reasonable plan to me.