I have an extra standing area ticket I don't need for the 18th. I didn't plan to bother reselling it in the beginning considering its price, but as it could make someone happy, I finally decided to sell it.
I could probably ask for a higher price, but I don't aim at getting rich. I just think I could ask for a little more than the price I paid, to contribute to the expensive cost for me of the trip to Vienna itself. I think 30€ is still reasonable for such a place.
If someone is interested, I will not be uncompromising on the price, but I would really prefer a payment via paypal. It is a pdf ticket.