You can get an idea of the price on PFC pads from here:
http://www.zeckhausen.com/porsche_products.htm
You can get an idea of the price on Pagid pads from here (I've never shopped here, though, so I can't say if it's a good place or not):
http://rennstore.com/page/ius7/Item_list.html
I can't speak for the Pagid pads, but you won't want to run PFC pads in normal day-to-day driving. They squeal and will wear your rotors when they're cold. They're track pads not street pads.
In my opinion, there are no good "compromise" pads. There are good street pads and there are good track pads and neither is good for the other purpose. I recommend swapping our your pads before a track day and then back to street pads after you get home:
http://www.zeckhausen.com/avoiding_brake_judder.htm
If you're experiencing brake fade, it's probably not due to the fluid, but the pads. Try a better brake pad and see if you get brake fade. For most people, ATE TYP200 and Super Blue (they're the same thing, just different colors) are adequate for the track until you get really fast. Instead of letting some fluid out before track days, just flush the system maybe every other event (there are more educated opinions on this than mine), alternating between the gold and blue fluids. They're only $10 a liter.