Did it happen to you that you bought the tickets for the theatre or the concert, and then you could not go for a variety of reasons? What to do at such a time, if you do not want to lose all the money you put into it? It's best to make an advertisement for free and wait for someone who is interested in the cultural event and would like to attend.
For concerts and various sporting events, the biggest disadvantage is that they have to buy very forward. But you can't know what's going to happen in half a year. Anything that prevents you from attending a given cultural event can happen. Then it is better to know about the place where you can sell these tickets among those who might not have done so much in advance and are now looking for the last rescue. Free classifieds allow you to create an offer and publish it among others.