You'll get 70 dollars if it's in mid condition.
about as much as it cost
129.99
You can but it wont fully cove the cost for a xl.
At Gamestop if you trade your DSi for a DSi XL you get $80 off the DSi purchase($189.99). If you trade your DS Lite for a DSi XL
Alot of money
you can do that in your local gamestop
pre order it from gamestop and it will be cheap
you can buy one at a Target or Gamestop.
Around 60-90 dollars depending on quility
they give you 150 dollars off
About $179.99
263 dollars