Anyone else collect label variants with only minor changes?
I have been getting most of my NES games by buying lots and keeping what I dont have and trading off what I already have...
I keep one of each game and I have been keeping one of each of the screw variants but lately I have been noticing small changes in labels. I dont mean like King of Kings but rather things like the seal on one cart might be white while it is black on another....

or Super Mario/Duck Hunt with a line or without...

Anyone else keep one of each for your collection or am I alone on this? And is there any resource that may have listings of the different label variants of each game?
Thanks everybody!
I keep one of each game and I have been keeping one of each of the screw variants but lately I have been noticing small changes in labels. I dont mean like King of Kings but rather things like the seal on one cart might be white while it is black on another....

or Super Mario/Duck Hunt with a line or without...

Anyone else keep one of each for your collection or am I alone on this? And is there any resource that may have listings of the different label variants of each game?
Thanks everybody!
Comments
I think there is a master list with most known variations. I don't know where it exactly is, but I think someone could probably retrieve it for you. Be careful though, don't want to stretch yourself too far with collecting everything. I did that for a bit and got burnt out pretty quick.
Thats good advice.. I have only been collecting for about a year and a half or so and I only have about 275 carts so I still have tons of games that I dont even have one copy of. I think for now I am not going to go out of my way to get a game that I already have but if I happen to get one I am going to hold on to it rather than trade/sell it.
I started taking a picture of every cart I have on my DSi so will have pictures of everything with me if I ever go out game hunting. Variants like the screw variants and the cart color wisdom tree variants are ones that I really want to get as many as possible but with the label ones I think I will seek those out more once my collection is bigger.
It's not just labels, it goes with boxes too:
(Neither of those are FS btw, before someone PMs me)
I collect the minor variants, even down to the