£6 - £8
No. You buy the points so you can buy things on Xbox. (Microsoft points)
If you mean "Xbox money" by Microsoft points. You can buy a prepaid card at most superstores in the gaming section (20$ for 1600 points). Also you can add then right from your xbox 360 by going to the marketplace, account settings, "add Microsoft points" using a credit card.
I don't think you can use the Microsoft points on the Xbox 720. I don't think there is an Xbox 720.
You can purchase Microsoft points from any game store or online.
There is no way to get unlimited Microsoft Points that does not violate the Xbox Live Terms of Use.
If you still have remaining Microsoft Points, yes, however Microsoft has transferred from Points to actual Dollar value."As part of the next Xbox 360 system update, Microsoft Points will be retired, and transactions on Xbox will take place using your local currency instead of Microsoft Points. Microsoft Points Cards you purchase from retailers will continue to be redeemable on your console and Xbox.com until further notice. Microsoft has no plans to discontinue acceptance of previously purchased Points cards and codes. For more information, see Microsoft transition to local currency." - Microsoft Xbox
No. You earn gamer points playing games, Microsoft points are to buy things on the xbox live market place.
Microsoft points are the virtual currency of the Xbox Live marketplace. Games can be purchased from the currency and used as "real" money. Microsoft points can be acquired from stores such as Wal-Mart of Gamestop.
No you cannot. It costs $19.99. However, you can purchase downloadable content from the Xbox Marketplace with Microsoft Points.
a lot
you have to buy them
You can purchase Xbox games online from the Xbox Arcade Marketplace. You can do this using digital currency known as Microsoft points which can be purchased for money.