I look at it like this: with rare parts, there is always a chance that it can become much less rare at any time. Take the black beard for example, a non-production piece in that colour but there was always a really great chance that it would come out in black sooner or later. You can't be surprised when it happens. My collection holds a few items that can be seen as rare yet common at the same time. My prize is my black bird and I know that some day it will probably come out again in black but what's the point in worrying about it? It's black, I'm surprised they haven't already brought out a black bird, same goes for the black sword.
Personally, I try to not go crazy for these types of things and give it some time to see if it will come out in the next couple of years. Like grey cheese slopes. I didn't go out and buy them while they were still rare and lo and behold, they came out in a few more sets...as I'm sure will happen with the green cheese.
Things like the pitchfork will always hold it's value as it will never come out in old brown.
Minifigs are a bit of a different animal though. This is still a fairly new phenonmenon though, so I'm going to sit back and see what happens as this latest minifig collection is probably the first to offer the types of figs that command high dollars on the after market. For now though, I'm going to go ahead and buy one because I'll be comfortable knowing that it's
worth it to me because I don't care how old the plastic is, I just care about the characters (in perfect new condition) that I'll be able to add to my collection.
All collections are different and so are collectors, so to those who are upset by this I'd just like to say "I'm sorry you feel this way, but please understand that it's out of your control."
