T-Mobile bound Lumia 521 went on sale at HSN which is the first retailer for device in US. Though it is selling at no-contract price of $149.95, but when it was listed on 26th April for the first time it was already trending as “Best seller“. Check now and it is completely sold out!! That’s shows strong demand as Lumia 521 was selling at full no-contract price. It augurs well for future, as it will be available on much better deals soon.