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
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.
Ds light is $50, Dsi is $70 and Dsi Xl is $100
no
yes
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, 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
Depending on where you trade the DS for the DSi, the cost is probably around $100.00. At Gamestop, the cost might be quite a bit less.
You can not make your own 3DS. If you order parts of the Internet you can reassemble your own.
The cheapest i have seen was for £5.42/$9.50 (not including P&P or MicroSD Card) There are too many r4 ds card in the market currently. The cheapest r4 ds card cost about 5EUR. But it only support DS and DS lite. The famous card is r4i sdhc 3ds. It support Nintendo 3DS,DSi,DS. So, I suggest you to buy a r4i sdhc 3ds card.