Why wouldn't they?
If they have nearly 20 on order, they can also have one in a near full-economy, giving tickets at 70% the price on the same routes flown by another company on a B787, and easily bring the competition that went all-B787 down.
SIA gave a clear message: If you want to beat me on the hub-to-hub, you gotta have one of these (A380).
Honestly, if the A380 proves to be a commercial success, it wouldn't surprise me to see a boost in orders (like the B747 in those times), which in turn will lead many non-compatible airports to take the next step and modify their airport to make them A-380 compatible.
Imagine Jet airways ordering the A380.
Brussels Airport will not bother to think twice about it, they'll do it.
And honestly I do see Jet Airways buying some A380's, they only fly to hubs on their long-haul routes. One day they will need the capacity, certainly the day that all India will start to fly. My nose tells me it will be somewhere in the next decade
Oh and ....
Tomorrow is an historical day
Anyone know the exact ETD?