Why is Draught Guinness more than double almost every other beer you can buy in Hungary? It's made in Dublin, in Ireland, so is in the EU. Before moving here four cans cost £5 . Here you'd only get two cans for equivalent £5 .

Also why do Hungarians think Guinness is a dark lager ..... it's not .... it's stout!

It's not only Guinness, most "famous" foreign beers are ridiculously expensive - Corona, Belgian beers and German too.
Serving them you show your guests that you have enough money ...
Our Lidl regularly has Japanese, Chinese, Vietnamese and ... beers - crazy!