2014-03-11 : My findings!
2013-03-06: 10$ each games. I don't really know the exact value of the black box games, but I know Zelda CIB is worth a good amount of money!

2013-02-28: Sweet deal on Craigslist. 25$ for this lot (+ 1 3rd party controller).

2013-01-31: Found this deal on Craigslist for 50$ !! I also got the manuals for each games. Always wanted a jungle green N64

2012-12-28 : Some other good finds today at various thrift stores! SNES games for 4$ each, Kirby Air Ride CIB 4$, Zelda Wind Waker 15$ (missing manual), Mystical Ninja Starring Goemon 20$, the manual is missing and the box is rough but the cart is mint.

2012-12-24 : 100$ for Contra (CIB), Mega Man I, Ninja Gaiden III, Super Metroid, Contra III

2013-02-28: Sweet deal on Craigslist. 25$ for this lot (+ 1 3rd party controller).

2013-01-31: Found this deal on Craigslist for 50$ !! I also got the manuals for each games. Always wanted a jungle green N64

2012-12-28 : Some other good finds today at various thrift stores! SNES games for 4$ each, Kirby Air Ride CIB 4$, Zelda Wind Waker 15$ (missing manual), Mystical Ninja Starring Goemon 20$, the manual is missing and the box is rough but the cart is mint.

2012-12-24 : 100$ for Contra (CIB), Mega Man I, Ninja Gaiden III, Super Metroid, Contra III
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Edit: I'm not saying you should buy them because of their price, but as a young collector, you don't want to have to pay later on if you can beat the curve now.