As Les said, you can select an ebony fretboard on any Artist Package guitar, for no upcharge (per the 2013 AP price list). When I spec'ed my AP 408, I was pleasantly surprised that the final price wasn't all that different than a 408MT with a 10-top, even after I added things like a rosewood neck, and the final price was still far below a PS instrument (<sigh>...someday...).
The Artist Package program is, well...it's friggin' awesome! I'm really glad that PRS brought it back, and expanded the available instruments/options. I hope it's here to stay for a long time! I'd highly recommend it for those folks who don't have the means to go full-tilt Private Stock, but who still want to make some personal tweaks/mods to a PRS instrument!
For any of the PRS employees/folks reading through these threads, thank you for offering the Artist Package program! :top: