Investment in "Beauty"

Recently I read a interesting mail and it addresses to a very obvious "phenomenon" here in Singapore. The mail is about a girl asking questions as how to get a rich guy. She claim herself to be pretty. Lets just give her the benefit of the doubt to keep the scenario rolling. Her questions were answered by an economist :

Dear Ms. Pretty,

I have read your post with great interest. Guess there are lots of girls out there who have similar questions like yours. Please allow me to analyze your situation as a professional investor. My annual income is more than $500k, which meets your requirement, so I hope everyone believes that I'm not wasting time here.

From the standpoint of a business person, it is a bad decision to marry you. The answer is very simple, so let me explain. Put the details aside, what you're trying to do is an exchange of 'beauty' and 'money': Person A provides beauty, and Person B pays for it, fair and square. However, there's a deadly problem here, your beauty will fade, but my money will not be gone without any good reason.

The fact is, my income might increase from year to year, but you can't be prettier year after year. Hence from the viewpoint of economics, I am an appreciation asset, and you are a depreciation asset. It's not just normal depreciation, but exponential depreciation. If that is your only asset, your value will be much worried 10 years later

By the terms we use in Wall Street, every trading has a position, dating with you is also a 'trading position'. If the trade value dropped we will sell it and it is not a good idea to keep it for long term - same goes with the marriage that you wanted. It might be cruel to say this, but in order to make a wiser decision any assets with great depreciation value will be sold or 'leased'. Anyone with over $500k annual income is not a fool; we would only date you, but will not marry you.