hello everyone !! I'm new to tablets.. I don't want to buy the expensive ipad 2.. my main use with the tablet will be reading/movies/browsing.. wifi will do.. I need a very good quality screen.. I liked nook tablet.. but there's nook color refurbished at 149 $ which I'll root.. the tablet has 16 gb memory and 1 gb ram at 249$ so is the upgrade worth 100 $ for my requirements ? awaiting reply.. thank you..