I guest it comes down to how little they can keep the price increase with the upgrade in ram. The 520 is perfect for the feature phone people (40%+) of the cell phone market to use as a upgrade. The 60 to 75$ range is pretty easy for these people to swallow. The 200$ (but I read where in China the 520 is selling for 100$) is not. When the price got to 59.99$ I bought one as a backup for my 820. Got a nifty red back cover for it and my wife decided she wanted it to replace her flip phone even though her flip phone cost 150$. I got another and my daughter took it in less than a week. Again she was replacing a flip phone that cost alot more than the 520. So I still don't have a backup for my 820 (which I like a great deal). Its small for a smartphone, has the same insides as the 9XX series, has a SD card.