The PS3 has been out for several years.
Yes.
Yes
Yes
You can use a GameStop gift card on the GameStop site.
can you get money back for your gamestop gift card
Yes it will
It means you get a Gamestop gift card instead of cash.
Gamestop gift cards can cost as much as the amount you put on the card so in other word a Gamestop gift card it the amount of money you put on the card
You can use them to buy games or whatever they have at GameStop
Probably to a store they like. If they like video games, try gamestop, if they like clothes Old Navy. But I would go get a amazon.com gift card since they sell everything
Whatever retail store that the gift cards are for should have a page on their official website where you can check your gift card balance. Sometimes you will find it in their gift card section, but some sites require you to be signed in and check the balance in a different area, such as "my account".
Smyths or gamestop.
yes
Unfortunately no. The reason is that the credit stored on an Edge Card is not taxed. This is because money put on an Edge card is from trading games in at a GameStop location or by a credit card (at the store). Since the games are traded for in-store credit, the government does not own this "currency", thus it is not taxed. GameStop does sell gift cards, which are essentially the same, except taxed.