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.
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)
No not even for a DS. A PS2 is worth about $20 in trade
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.