2 months from now: 18 inch optical Thunderbolt cables by Monster Cable: $100.
9 months from now: 18 inch optical Thunderbolt cables by Monoprice: $10.
I hope so, but I would be more encouraged if monoprice already had some copper thunderbolt cables for $10. (I think that these optical cables also require chips in them, to convert electrical to optical and back at the cable ends, or am I wrong?)