i know this will turn the discussion into chicken and egg type of thing, but when apple prices their products, they have to compare against the market.
in the u.s., 20" iMac was priced at $2100 to compare well against other desktops/LCD monitors in the u.s. market.
you have to do the same in the u.k. or japanese market.
you can't just translate the prices because it's more important to have relatively competitive prices for each relevant market.
in japan, for some reason, RAM costs 50% to 100% more than in the u.s. it's just the way it in that market... no one is trying to rip you off... but who knows how, for example, the u.k. computing market evolved to be relatively more expensive compared to the u.s. one to begin with?