With an online subscription, you keep paying Microsoft to usethelatestversion of the software, rather than pay the company once for software that gets outdated over time.
Thelatestversion is optimised for use with thelatest and most popular smartphone handsets including the Samsung Galaxy S3, HTC One X and Google Nexus 4.
Then again I do think manufacturers should not be creating crappy phones with crappy hardware, then using thelatestversion of Android that use all of the phones resources and cause it to be buggy as heck.