From $350K vacations to custom-made jewelry and cars: Michael Jackson's children have an $8 million yearly allowance .... but 'are not as bad their father when it comes to spending'

• -Allowance for Prince, 17, Paris, 16, and 12-year-old Blanket Jackson has gone up from $5 to $8 million
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• -Michael Jackson's estate has ballooned to $1.5 billion following his death in 2009
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• -The three are given $15,000-$20,000 in 'walking around money' each month
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• -They go on three vacations a year, usually to Hawaii and Las Vegas
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• -Eldest Prince bought a $40,000 truck and spent $50,000 on jewelry for girlfriends 
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• -Grandmother Katherine Jackson is paid $1 million to watch over the children
• Jackson has sold 50 million albums since his death in 2009