There are many reasons! Diversity of investment is something good.

Safety and security can be bolstered by using it (the right way) and it's ofc an interesting growth market - it also got a novelty touch and gives the user more independence! I guess in the future there are going to be even more options how to implement the technology into our daily life - Ticketing services like the Cultural Coin are a good start but i expect there will be many different usage opportunities to come. ^^ We are just scratching on the surface.
You are totally right. It just offers so many new opportunities which, if used wisely as you pointed out, could mean a great deal to future payment systems. Cultural coin is a great example for a blogchain project with a specific use. Projects like this even have a value to society and can bring advantages for users as well as companies. Cool project really!