I dont understand the fact that you say that the service/Crew at the cons are not good! I'm from Germany and i was At some ET's and i really loved ad enjoyed it there! And i also liked the Service and the organisation from massive Events! I was At a few other cons in germany and the USA and they were all horrible!
And yes, its sad and dissapointed when the guests cancel their coming and we paid all that money just for them but thats the risk and we all know about that when we buy the tix!
So for me i just can say thank you to massive Events for the Great Time At the ET's and i'll defo gonna miss the events, if ET 8 really should be the Last!?