What's the point, really?There are many things to read on the subject , but I imagine my own reasons are similar to a lot of others. The main thing is sovereignty, the right to make our own policies, not accept those thought up in Brussels.Not to accept the 'free movement of people' but to have our own immigration policies, we will always need immigrants but we must be able to choose who comes and goes.Not to belong to an already teetering on the brink bloated and corrupt organisation like the EU.
If we go, chances are that other countries ( the ones who matter) may go as well.
What was needed a while ago was a resolve to change the working of the EU, but with so many countries involved, nothing could ever be agreed upon.If the EU had kept to about a dozen countries it could have worked, but the relentless rolling on and gathering up of poorer countries, has doomed it.The eventual goal of closer unity and monetary union as well , may have been turned down by us, but if we stay in I doubt we can stave it off for long.
It's going the way of all empires, when they extend themselves beyond being able to control things properly.
The main thing about leaving is sovereignty, it's no good talking about economics, because it's unknown whatever way we vote, but the nub of the matter is being able to rule ourselves.
All this has already been said on the threads in many ways, which is why I find no point in going over it again, but you did ask!