Do people really go for this kind of stuff? Maybe for kids but really? Can Nokia get anymore gimmicky?
You know why Windows phones fail? Because they lack venders supporting them. When I go into a phone store I see a wall of cases, accessories and stuff for iPhones and popular Android phones. Do I see anything for a Lumia 900? No. Most people are followers and most vendors market to the highest potential marketed product. It stands to reason that Windows phones will get very little accessory consideration.
Even if the Lumia is a great phone, the iPhone is the popular one and that is all that counts in marketing.