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by BeetleB 1466 days ago
> It depends on the opportunity cost. If you can get a house for 3600 a month, and the house appreciates in value in excess of the discount rate, then it's worth it to purchase that house.

In this case, the absolute value analysis yields the same result, so it doesn't really "depend". I'm not saying you will always go wrong thinking in terms of rates. I'm saying you'll never go wrong thinking in terms of absolute values.