Earlier quoted context omitted.
No. $250 is ridiculous, even for buying everything new. I just spent 2 minutes googling: Amazon Class Class 10 8 GB SD Card: $9 Best Buy 20" LCD: $90 Keyboard: $15 Mouse: $7.54 Speakers: $10.54 Total: $132.08 If you go to your local thriftstore, you could get all of these for <$50. Not sure if you have ever been a poor kid or not, but take it from me, this computer WILL bring computing to kids who would not otherwise…
OK, living in Norway, prices are "somewhat" higher. On the website of a popular computer-shop (digitalimpuls.no), the cheapest screen I found was Iiyama LCD 24" for 1100 NOK =~ 200 USD. (All other screens, also smaller, were more expensive.)
I also had the thought that at many American schools/libraraies I bet you could find a sympathetic IT guy to give ya some old parts that are on their way to the scrap yard. And I know of at least one computer non-profit recycler in my city that would hook kids up.
Point is, the peripherals of computers, including monitors to a certain extent, are abundant. Tiny, relatively fast computers capable of putting out 1080p are not.... Or I guess I should say weren't!