Just think though if we stay in, the migrant crisis is gonna hit Europe hard and all it takes is for the UK (which we're not in Schengen) to vote against those who want to spread the migrants about to force in the future yet a greater deal for us without us accepting any migrants currently floating in Europe
I've been on the in/out fence for a bit, As a business I can see the monetary benefits (which do outweigh the monetary costs) yet also see the inane rules forced on us. Currently I'd vote in... but only just..