It shows for me in USD as well.
At the bottom of the screen, it will ask you what type of currency you want to see. Mine always just showed as USD.
To answer your question though, I usually sigh and roll my eyes when I see something in non-USD currency, because that means I have to pull up a currency converter, which is just an extra step that I have to do. As a buyer, I want to know exactly how much I am paying. If I see something that I really love, and I have to do the math and notice that is going to be a smidge higher than originally thought, I won't buy it. Its all a psychological thing. If its in USD currency to begin with I probably won't have a problem with it.