Context: The Xbox Live Marketplace is a virtual market designed for the console that allows Xbox Live users to download purchased or promotional content. The service offers movie and game trailers, game demos, Xbox Live Arcade games and Xbox 360 Dashboard themes as well as add-on game content (items, costumes, levels etc.). These features are available to both Free and Gold members on Xbox Live. A hard drive or memory unit is required to store products purchased from Xbox Live Marketplace. In order to download priced content, users are required to purchase Microsoft Points for use as scrip; though some products (such as trailers and demos) are free to download. Microsoft Points can be obtained through prepaid cards in 1,600 and 4,000-point denominations. Microsoft Points can also be purchased through Xbox Live with a credit card in 500, 1,000, 2,000 and 5,000-point denominations. Users are able to view items available to download on the service through a PC via the Xbox Live Marketplace website. An estimated seventy percent of Xbox Live users have downloaded items from the Marketplace.

Question: What XBox Live service allows users to buy games and downloadable content?
Answer: Xbox Live Marketplace

Question: Which levels of Xbox Live membership may access the Marketplace?
Answer: Free and Gold members

Question: What hardware is required to use the Marketplace?
Answer: A hard drive or memory unit

Question: What virtual currency is used to make Marketplace purchases?
Answer: Microsoft Points

Question: Prepaid cards for Microsoft Points are available in what denominations?
Answer: 1,600 and 4,000

Question: The Marketplace is only available to which level of Xbox Live?
Answer: Unanswerable

Question: How are hard drives or memory units purchased?
Answer: Unanswerable

Question: What is the average price of a game?
Answer: Unanswerable

Question: What percentage of users use prepaid cards?
Answer: Unanswerable

Question: Microsoft points can be used to buy what for the dashboard?
Answer: Unanswerable