>In general, the unit costs reported in Figure 4 for double-track Maglev systems in heavily
populated and urbanized areas range from $50 to $100 million per mile.
>https://railroads.dot.gov/sites/fra.dot.gov/files/fra_net/1176/maglev-sep05.pdf
maglev is almost always more expensive than planes and chinks are only doing it because they live in megahives and can't into jet engines