Why are all the hobbyist LCD screens so expensive? Even the dinky little HD44780-driven character displays seem like a high-margin item for all the usual suspects. It seems to me that there are devices everywhere with these screens in them, so these screens must be available from somewhere.
What the hobbyist electronics community could really use is a 2- or 3-inch color display of reasonable resolution (a couple hundred pixels in either dimension) that can either be driven directly, or driven from a commonly-available peripheral. Something like this could be very popular, if costs could be kept reasonable.