Why shopping outside this state is not treason

WHY should anyone be denigrated for exercising the freedom of choice to shop wherever (Newry, for example) prices are cheaper.

On the day of the recent public sector strike I went to Wales to buy double glazing and guttering for my house. I tried to source it in Ireland but could buy it much cheaper in Britain. The VAT that I saved paid for the ferry.

When I collected the guttering I was told it was made in Cork, but the price I was quoted locally was twice the British price, excluding VAT.