It doesn't make any sense for Microsoft to produce 20GB hard drives anymore. They are probably the same in price as 40/60GB. But as long as Microsoft continues to improve the hardware and move the CPU and GPU to a smaller architecture that uses less power and produces less heat, I wouldn't be surprised to see the Arcade go down to 149.99 next Christmas season.
I think the upgrade program is great.
Threads of Interest:
The Movie Thread: http://www.vgchartz.com/forum/thread.php?id=6880
The Crow Eating Thread: http://www.vgchartz.com/forum/thread.php?start=0&id=3886
The Betting Thread: http://www.vgchartz.com/forum/thread.php?start=0&id=7104
Custom GIFs Thread: http://www.vgchartz.com/forum/thread.php?id=18963
The Greatest Game Ever Conceived On Any Platform
Tag: "I have tasted Obi-Wan's bitter tears"