[chris1982]

I would definitely make pricing dependent on utility for the current setting for some advantages.

DR 5 is a killer for a TL 3 world, while a power to produce a 3d fireball is an ok advantage in TL 8 but definitely not a game changer.

Or think about a power to communicate instantly over vast distances - from utility point of view this might go from about 30 points at TL 3 to 1 point perk (cell phone is always working) at TL 8...