Help me choose!

My birthday is comming up on 24th of march yay for me -.-
I have a very hard decision to make and I need you to help! *points at you like the Uncle Sam pic for the U.S. Army*
*coughs*
I got 3 options
1-Get an electric guitar and start making girls faint
2-Get a Chair from Ikea for 800 sr , due to the fact my ass is on the chair 6 hours daily due to studying purposes , and NO I am NOT a nerd t('-'t)
3-use the Money for the Investments comming in the Saudi Market , E.g. Bapu Insurance company.
Guide me *_* , Much appreciated!
-confused Khalid