Microsoft's Weird Attempt At Getting Japanese Users To Play Xbox
The playtime is cumulative across all players, but still — the rewards aren’t exactly enticing. 400 Microsoft Points converts to about a dollar in monetary value, which you can only receive if you have already paid for an Xbox Live Gold subscription.
I hate online systems that use their own abstracted coinage. Luckily, the next Xbox will scrap Points in favour of dollars and cents. Much better.