A million dollars, no doubt. Being able to buy the more expensive foods, like lobster, (real) wild salmon, ecological meat, etc. for years probably will enhance my lifespan a tadski also (I'm thinking). Little (cosy) house with decent stretch of land.. brilliant too.
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A million dollars (or €s/you won the lottery): carefree partying for a couple of years or invest in something 'sensible' and continue more or less the same lifestyle whilst hoping that summa would have increased in say 10 years time?