Well, the UK has massively benefited from its EU membership. I don't think we'll have that much money around after we leave, our trade will take a hit, our companies will have less access to EU talent (which is massively needed in IT at least), so we will be less competitive.

I do think all that extra money we paid in the EU was easily recovered.

It's going to be ironic when we have less money around than before paying into the EU :(