I see them on sale in the UK and they are sold as smartphones in general, rather than cheap but respectable. I think sometimes people don't notice that this is a market that is growing a lot, has a lot of potential for more people to buy devices and apps and the market can still change radically from one year to the next.
Just because Nokia and Microsoft were late to launch something that compares well to iPhones does not mean that as of 2013 it's all hopeless for them. There's plenty of people in the whole world who are in the market their 1st or 2nd smartphone and/or are not deeply committed to iOS or Android.
Now if Apple decided to go loco and sell a truly low end device, similar to what they did with the 5c but for £200 unlocked, then it would turn the market upside down... again.