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.
What you're willing to pay for it
No you do not have too pay for netflix on the 3DS.
Of course not. What would Gamestop have to gain by a straight exchange of a new console for a second hand one. You'd get the standard trade-in rate for your used 3DS, which varies, but probably will be no more than 2/3 of the price of a new 3DS.
Yes, but in order to not have to pay any money you would have to trade in a lot of PS2 games: you probably wouldn't get much more than $10 each for the games, and the 3DS costs $250.
A DSi can be traded for $75, and the 3DS costs $250. Trading a DSi for a 3DS would cost you about $175 without tax.
The price that Gamestop will pay someone for a used blue Nintendo 3DS without a stylus, will depend on the condition and age of the gaming device.
I am 99.99% sure that you cannot trade in the DSi XL for a 3DS without needing to pay or trade extra.* But what you could do is trade in your DSi XL with a couple games and extra cash, and you should have saved up enough to get your 3DS.*You would have to find an extremely good deal, and I don't think it would be possible.
Most 3DS first party titles (games from Nintendo) cost around $40. Some games may be cheaper depending on where you get them.
Almost as much as if you did not trade in a PS2
the balance of trade is how much you receive the balance of payment is how much you pay
I want to pay you back (for loving me) by Chi-Lites