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View Diary: The Electric Car, Cost-effective and Affordable: Available Now! (207 comments)

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  •  Yep. (5+ / 0-)
    Recommended by:
    Mr Robert, DRo, slothlax, wader, Chi

    It's like buying a self cleaning oven for $1000 versus a manual-clean oven for $500, then subtracting the cost of oven cleaner you never purchased from the self-cleaning model.  You can't do that.  

    The proper thing to do is add the annual cost of oven cleaner to the $500 model and see at what time in the future the cost of oven cleaner overcomes the $500 savings, taking into account opportunity cost of cleaning the oven.

    Then you need to decide if you'll really own either oven that long.  

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