They did manage to get many of the top 50 apps to their platform, however, top 50 isn't enough. When all your friends have the latest and greatest on their iOS and Android and you have to wait a year or two for a WP port you get tired of that. Plus there are many industry-specific and workplace apps that never made it to WP. You can only face so many let downs in the app store before you give up on a platform. Nokia did make some damn good hardware though.