I don't think £150m was opinion actually. Peston challenged the Boris claim that it was £390m per week (or whatever) and the 'experts' finally agreed that the true figure after rebates was £150m. £150m per week!! Just let that settle in and then consider what we could do with that.
How about this, lets leave and see how things go for a couple of years. Even if it goes totally tits up, there'll still be electricity, there'll still be water, we will survive. Who knows, we may start to ride a huge wave of prosperity and bring a better life for my kids and grand kids.
But if we've got it wrong, and our standard of life goes down, lets go back to the EU, knock on the door and say please can we come back in, even though the majority voted against you, oh and by the way are your bank details still the same as we want to hand over £150m a week again.