Ds light is $50, Dsi is $70 and Dsi Xl is $100
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)
about 60-70 dollars
in Australia if you go to game the 3ds costs $99 if you trade in a dsi XL console and any 2 ds games
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
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.
The DS lite won't fetch much, only about £30.00/$40.00 top condition. Subtract that from whatever the cost is for a 3DS in your country.
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.
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.
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.