
Originally Posted by
Gameguy
There's multiple versions of Metal Gear Solid 2 and 3.
Metal Gear Solid 2: Sons of Liberty
Metal Gear Solid 2: Substance
Metal Gear Solid 3: Snake Eater
Metal Gear Solid 3: Subsistence
The later versions are worth more than the earlier ones, they fixed problems from the original versions and included more bonus stuff. Still Substance and Subsistence are only worth around $5-$10 each complete, compared to $1-$3 each which are what Sons of Liberty and Snake Eater are worth. The original Metal Gear Solid is worth around $10, Twin Snakes is the most valuable game that you mentioned him having.