Quoted from underlord:
I'm also tempted to pull the trigger on this title, but a preorder with nothing but a schematic of the pf?
Nope. If all 600 are gone, life goes on. When I see more details I'll jump on board.
I'm on the same page. If the LEs are spoken for by the time there is a real working prototype, then there is still the standard version you can pickup for cheaper. If the game sells enough units, you can bet that the beacons and fiber optic lamp lights will come out as a aftermarket mod.