'00 Headers, and the continuing lack of them

Hi all.

I have a quick question. I searched the forums for discussion about headers for my '00 XJ, but I found a thread from sometime last year stating that headers were really hard to find for them, because the stock headers (by stock headers, I assume that what we're talking about is the stock cast exhaust manifold, but I digress) were redesigned so that you didn't really need aftermarket ones. Now, since I was able to find Banks headers for the '00 XJs pretty easily, my question is this... since headers are pretty easy to find now, is it still not worth putting them on?

Thanks