Rates for trading in pre-owned games change all the time, your best path would be to visit the site of the shop you wish to trade with and check their price guide.
It would depend on the titles of the Games and where you sold them.
you would get about 750$
It depends on what games they are and where you trade them in.
It depends on the condition, if its the elite it would be about $200, and if its a regular white one it would be about $120.
They don't pay much. You will get more on Ebay.
Answer is A Lot.
$25 but if you have a pro membership you get an extra $25 but only this month
It depends on how much the Sims 2 Games Cost
Maybe $25
they will give you about $25 for a lite and $30 for a dsi
$250
about 50 bucks