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Some of us get excited about the idea of building something. We don't do it to save money. We do it for the pleasure of craftsmanship.
I know it is not practical to "re-invent the wheel" by building my own reader from a collection of parts. But I have done similar things before, and that interest has led me into a long productive career hiding small computers away in unlikely places and making them perform.
Adapting a photoframe is a cool idea. There is probably a microprocessor in there already. It does not have to be very powerful to simply display text on the screen.
These devices are fascinating just because they represent raw potential. Much as a building under construction captures our imagination and compels us to explore the unfinished interior, these devices set our imaginations free to explore what might be. In a poetic sense, they are the building blocks of our imaginary future.
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