How much is a mint condition copy of Majora's Mask worth?

I was wondering how much I should charge for a factory sealed mint condition copy of Majora's Mask for the N64. I was thinking about selling it online at Amazon.com for about $60-70 bucks. Most of the other "new" copies on Amazon.com go for about 100 bucks. I kind of want to get a good profit from the game, yet at the same time I don't want to put the price so high that I'll never sell the thing. How much should I charge, and is Amazon a good place to get a sale? Is there a place to tell you how much the game is worth?

I would put it at 79.99 or 74.99 and see if you get any hits. If not, maybe lower it to 69.99. or keep it and cherish it for life