Kicking myself hard!!

[AgentRetro79]

I love my nes, I collect a lot of games, the other day I was in my local used game store (plug) game world and I spotted a yellow labeled metroid cart for the nes. I didn't have the cash on me so I figured I go back the next day which I forgot about it and went today to find…you guessed it, gone. Now I've heard that the yellow label was more rare and worth more than the average label so if someone would like to do the honors of twisting the knife and answer the question of rarity and value between the grey one I have and the yellow one I should have gotten. Thanks