Dude that's freaking cheep!
Here in the US, due to Skyfucking venture holding us by the nut sack and kicking us in the head....$20/min
My business buddies and I were within months of starting to build an tunnel here in NJ just overlooking the city.
Only catch...good luck finding venture capital when there are two...i shit you not...two tunnels sitting in a box in the POS Xanadu center.
Maybe in a few years we will get a nice 5m tunnel up and running in NJ.
total cost only $9 mill
Till then enjoy