So are the only disadvantages to the PIAA LEDs the price? They appear to be around $230, doesn't seem that bad if they're reasonably bright and provide a pure white with no errors? Seems like all the cheaper options have some sort of tradeoff.

I searched all the old threads, and couldn't find much - no real definitive comparisons.

And is there info yet on what the new 5-series uses, i.e. LED or HID?