Can someone explain..

What the hell are mint cakes and why people buy/sell them? Thanks.

 

Basically, they're a rare reward from a very rarely played minigame.

They do nothing important and are not worth anything, but primarily because of people buying them out they have risen far beyond their real value.

There is no point in having them, and will probably crash in the next few weeks or days.

If you want a real life version of a bubble like this, read this. It explains pretty clearly the stupidity of this kind of thing =P

http://en.wikipedia.org/wiki/Tulip_mania

 

"A Mint cake is a food item that when eaten will restore will restore 100% of a player's run energy."

Taken from The Runescape Wiki.

They have a high street value due to its rarity and is used to exchange junk.

 

Alright, thanks guys!