I think this is a fantastic topic.
Our group has tried a lot of different methods. Ultimately, we go back to the lame imitation method because it has the right combination of cheap and quickness for setting it up.
D&D has become more and more about the visual experience. From graph paper dungeons (way back when), to paint yourself pewter/lead minis, to prepainted minis, to tokens, to character visualizers, to tactiles with multi color dry erase markers, D&D simply needs to appeal to the eye to continue to get traction with new players. I really feel there is a market here for a company to develop a way to print/produce maps via some format (or multiple formats) that enables the DM to show the players exactly what he sees. I really find it quite funny that companies go to great lengths to produce visually stunning maps when very few DMs are able to convey them to their players. Companies/D&D groups have come up with some solutions - projector method, D&D tiles, to name a few are out there but nothing has universally caught on. I've often thought Dungeon could really become leading edge by giving the DM the ability to showcase maps to their players in all their glory. Not sure how, but if it could be done...
I guess there is no easy answer to this, but if someone creates a solution, they will make a LOT of money.