I can't afford to buy every character, nor would I really want to in the end, I think. But yeah, Giles is really the only Buffy character I want right now. I feel as though we've waited long enough for him when you factor in that Xander, Oz, Willow, and now Cordy - all part of the original Scooby gang - have been made. He's the missing puzzle piece, and for me, when he is released, the puzzle will have been completed.
I actually have a couple of Scoobies to get sometime in the most likely somewhat distant future. I didn't want them not knowing if I was going to have a Giles to put with them.