PC RAGE is a console port:
It was made for Console.
TEXTURES suffer
The texture compress caused massive loss of fidelity - on an order x3 or x4 - 125 GB + = compress to 23 GB so it could fit on a DVD/B-ray disk.
CPU multi-thread support / x64 support / SDK - nope
Id/Beth. will not release these items because it devalues the Console Market; its more profitable to wait. They will wait until sales fall (March / April 2012) then give us our "Bone"... "Sorry

A $60 copy w/o the hardware (cartridge) or DVD / docs -> so Steam (digital) is cheap an easy for them - they maximize profit while selling a console port on a platform that has x2-x3 the fidelity and raw CPU speed.
Intel did this in the 1990 w/ Celeron and BUS SPEED - sit on your hands and milk the market - they will lose out in the end. DX 9 can only live so long. The next rev of HD TV will FORCE these guys to come into the 21st Century w/ their tech.
They make the most profit on us, while selling us a console port. How is this good business. John has as much as admitted this in his own words. "BIG MISTAKE"