I keep hearing this statement about clickies but I can't remember anyone having a broken rotary. It does make me feel like buying more clickies but I love the versatility of the rotary so much and never having one fail yet is the reason I have only purchased one clicky.
Catastrophic failure, where the Rotary ceases to work at all (no light coming out of the end), I have not seen. I know of only one failure caused by damaged, which simply stoped the rotary function from working (which essentially turned the Rotary into a Clicky) happened on one that fell from a motorcycle on the freeway.
However, even this being the case, the Clicky has less moving parts, fewer contacts, and fewer electronic components in the tail. The Rotary mechanism has been upgraded a few times (and will continue to be upgraded as Henry thinks of improvements to it).
Henry himself considers the Clicky more indestructible than the Rotary (he and I have had conversations about this).
All this being said, I'm a huge Rotary fan. At the same time, I keep a Clicky in my emergency bag. I carry a folding knife daily, but have a fixed blade in the bag... both the same high end brand. I kind of consider this the same thing.
If the zombie apocalypse was starting, and I had to pick just one... (it would bother me more that I had to pick just one than the fact that people were turning into and getting eaten by zombies) but in that case, after a lot of snot and tears, I would grab the Clicky.