$299 is not cheap, is more than what the phone that the average person has costs (that is not an iPhone). And with a smartphone you surely can do much more things than that object. With $299 you can also buy a tablet, even a decent one, where you can install whatever app you want.

But even if it did cost $10, it would still be a waste of money because you spend $10 on an useless product, you would be better to spend them to eat a pizza, it would be more useful.

What do you use it for? This reminds me of the digital photo frames that everyone had back in the days and that were almost finished in a drawer after 1 month of usage.

A useless device that sits on a table with the sole purpose to waste electricity, that for what it costs these days, better to use it for something more useful.