Is it more profitable to receive $2000 now or $3500 in 10 years? Assume that money can earn 6% interest compounded monthly.
I would take the 2000 right now and invest it at the 6% compounded monthly.
In mathematics, you don't understand things. You just get used to them.
I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.