I own quite a few of those old SSW pieces, and some I'm still very fond off. The RWoS is certainly one of 'em. But, I also own some, I wished I had never bought... KotD, Shelob, Gandalf & Shadowfax, Fellbeast & Morgul Lord, PJ as corsair. All are still boxed up too...
I never managed to get my hands on the original Balrog, although I was very close a couple of times, even for an AP Balrog. I still fancy a Balrog, but the days I'd spend that much money on one figure are long gone. And as Mesa correctly pointed out, most AP's are no real AP's, so to me, they are not worth more than a regular edition item. I love low numbers, (low Edition Sizes even more!) but, a low number is no motivation for me to pay more. After all, all editions are more or less the same. It's all in the mind, if you get me.
Still, congratzz to the person that won this RWoS. It's a great piece, no matter what number is on the bottom!