I have also heard they are not long lived. The one in Montreal that was awarded that these came from a selfing died also. I don't know why. My friend in Montreal said some of the new ones they have are dying after flowering. I have one that is spiking that has a new growth so it may survive. I have a few of these that are blooming size that I am going to sell
I think if they are happy they will not die. my friend in Montreal told me today on the smaller ones that are spiking he cut the spikes off and all of them have new growth. I have been grown them for a couple of years and none have passed as of yet. There is always a first time.