Geh065,
I never wrote that CX could not fill the seats (suites in this case) but rather that it may not create the greatest return on capital investment. Furthermore, the branding image created by the media buzz would only truly benefit a very small percentage of CX passengers. I do not think F class is CX's bread and butter. J class and cargo are. That is why frequency and belly cargo are top priorities which big twins deliver far better than an A380.
With respect to higher demand on A380 flights, I'm quite certain that at least a portion is due to the fact that operators fly them on their highest demand flight times and days. That would seem to make sense, right?
I have no doubt CX could make money with the A380 on routes like HKG-LHR. The question is whether they would make more with -8I, or even big twins operating to additional airports like Gatwick and Manchester. For the time being, it appears that operating clapped out -400s is turning a good profit despite the high fuel prices.
CXorcist