I would say:
PS2 Slim: $100
PSP: ?
DS Lite: $95
PS2 Games (Each): Depends, but probley about $15-$20 a game
The DS Lite has sold a lot more than the PSP overall, but it's a matter of what you want, the PSP has much better graphics and controls, but the DS has 2 screens, a touchscreen and is cheaper.
Maybe $20-25 dollars unless it is sold as a bundle with games and extra accessories
it depends where u sell it
you will get about $25 and then they will sell it for about $90
They are sold with the controller
5$ dollar
Usually, a DS Lite will be sold at about 100$. Game Boy has out. You can surch on any related sites.
30-70 max Dollars
300 dollars more like $100-125 or less if traded in
only a particular one. which is the 120gb i believe. the ones currently sold in stores DO NOT play ps2 games.
Only the ones redesigned for the PS3 and sold at the Playstation Store or on Discs saying PS3. The PS3 slim does not play any PS2 games
They offered me $30 in-store credit. And mine was in great condition.