I don't know when you got your 505, when I purchased my device there was not many choices for ereaders.
Now there are a lot of devices out there with different prices points and features. You might want to do a little research before you purchase an new PRS.
In particular I really like the Astek Pro for the same price point of the 300 you get a lot more features, and 8 different colors to choose from.
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