yes
no
yes, at Gamestop Trade your DSi XL and get $100 in-store credit toward the reservation of a 3DS, trade in your DSi and get $75 or trade in your DS lite and get $50.
No not even for a DS. A PS2 is worth about $20 in trade
Initially a 3DS costs about $270. If you trade in you DSI you get $75 off. Trade in DSIXL for $100 off. DS lite gets $50 off (if you were wondering)
You can not make your own 3DS. If you order parts of the Internet you can reassemble your own.
in Australia if you go to game the 3ds costs $99 if you trade in a dsi XL console and any 2 ds games
While you can't trade an older system for a newer one, you can certainly trade a DS/DS Lite in for credit at GameStop or stores like it.
Ds light is $50, Dsi is $70 and Dsi Xl is $100
No, it is a 3DS game, it can only do DS download with another 3DS.
about 60-70 dollars
Depending on where you will do the trade, you may either get the 3Ds free or will have to pay a little bit extra. (Depends on their condition.)
Yes, you can. The Nintendo 3DS XL is the same thing as the original 3DS except it has a 90% larger screen and better 3D and such. They are both compatible for the DS Pokemon games. I trade Pokemon all the time using both my 3DS and my DS Lite. I don't have a 3DS XL, but yes it will work on the XL since it is a DS system.