After working in a newsagents for a while - some time ago - I was surprised by the amount of people who picked up magazines without realising they were overseas editions, even when it seemed obvious that the issue was in Italian or French. So when it comes to Vogues from countries that share the same language, I can see how the confusion happens to anyone who doesn't know their stuff, and isn't paying too much attention to their impulse purchase, even if it seems second nature to us.
They do annoy me deeply though - even when you manage to remove them, some of the labels leave behind a sticky residue that attacts dirt.
Anyhow, I'm glad honeycombchild mentioned that US Vogue is out, because it meant I could pick up the second-last copy in the shop at lunchtime.