Red wrote: you can do that with the exchange rates. i can't even afford to stay in the city, i usually end up driving back home after a gig!
It's not as simplistic as that. The exchange rate is not the only thing to take into consideration eg. http://www.usa-vs-uk.com/everydaygoods.html I know the rate has improved since this was done in 2005, and it doesn't look like a very rigourous comparison, but even taking current rates into consideration many goods are still more expensive to buy on your side of the puddle than this one.
Good luck with getting your tickets.