But would you turn a 10 hour flight into a 16 hour flight with connections just to fly an A380?
Seattle is turning into a major hub to the Pacific (it's significantly closer to most of the Pacific Rim/Asian destinations than LA or San Francisco
There are plenty of people who will have to take at least two sectors to get to their destination.
So flying from Newcastle in the UK to SE Asia then you could go via a European hub AMS, LHR on something like a 737 or A319 and then probably a 777 though possibly a A380.
Or a 777 with Emirates followed by a 777 or A380.
Emirates is sucking business away from the European carriers using DBX as its hub and serving primary as well as secondary airports.
Given the choice between a A319+777 vs a 777+A380 combination there will be many that choose the A380 option.
Or if flying from London - given a choice between a A380 with one carrier and a 777 with another top say SNG or KUL? Who do you choose?
And don't forget our friends Emirates (yet again) offering the option from London to transfer via DBX - some people actually like the break of journey and the A380 out to DBX is a bonus.