Hello, I am fairly literate with computers, but new to android, until recently. I just bought an HD android media player, from dx.com, for 73$. At deal extreme, 73$. 4 gb flash. It works great. I went to buy another one, and see that there are dual core models available for even less money?: At deal extreme, 50$ dual core, 8 gb flash. How come the one I already purchased cost more than the dual core unit? I'm so lost, I just want to know what's what with these things. The specs aren't really published like PC parts are. I was going to put the links to the 2 products, but it won't allow that.