Good post Poutanen,
If I could only own one board.. it would be something slightly directional. Completely symetrical setups are not going to make you a better switch rider, a directional 1-board-quiver is going to serve you a lot better.
To the OP, don't be discouraged by your purchase and the advice... if you get into some nice snow, just set your bindings back an insert and you will do just fine! If you love snowboarding and ride a ton.. you will probably find yourself owning a shorter twin and a longer directional later in life.
For what it is worth.. I have owned some of the so-called "quiver-killer" boards and nothing beats actually owning a good 2+ board quiver IF you ride dynamic conditions.
Enjoy your new board bud!