need vs want

While i googled on how i should distinguish between a need and want, i chanced upon this

The Gun And Butter Theory(http://www.johnchow.com/the-gun-and-butter-theory/)

some excerpts:

"It’s pretty simple and easy to say that we should all be acquiring guns, because guns make more guns, while Butter just melts. However, most people go through life buying butter and no guns, or they buy butter thinking it’s a gun, when in fact it’s just a very expensive piece of butter."

"Guns appreciate while butter depreciates. Examples of guns include stock, real estate, collectible, anything that goes up in value or makes income (other guns). An example of butter is almost anything in your house, except the house itself."

"When I look at the amount of guns I hold I realize that I really need a lot more if I’m to create the kind of lifestyle I envision for myself. The truth of the matter is, you can’t get there by working – you can only work 24 hours in a day. However, guns make more guns, and those guns make more guns, and so on. Get enough guns and you can have all the butter you want"

So much truth and wisdom in it, isn't it?

I am still trying to get that digital piano off my back, that's like a note thumbtacked into my skin. everything and everyone around me think i should not get it. the price tag with it is crazy. Anyone in the right mind will not pay so much for a digital piano. Just go along with the acoustic..get it tuned and play. What is the fuss?

This is like cold turkey and i just have to hang through this weekend. once the promotion ends i'll be safe.

I sound so miserable, don't i? =(