With international travel unlikely to return to pre-virus levels for at least 2-4 years AFTER a vaccine is distributed across the globe (which itself would take a couple of years to produce and administer), a number of international airlines who had those giant double-decker A-380 planes, are retiring them, after little more than a decade of operation.
QANTAS got their first one in September 2008, and I believe they were one of the first airlines to get them, and not many airlines ended up buying them due to the GFC that hit at that time, so I imagine a lot of the US and European airlines had to cancel their orders at the time, which is why we didn't see as many of them as was expected, as they were said to be the replacement for the 747. I remember many airports having to upgrade to cater to the larger A380, as their runways or gates/skybridges weren't able to accommodate them.
With the virus preventing almost all international travel, and with smaller fuel-efficient aircraft now available from Boeing and Airbus, I would imagine that the A380 is unlikely to be seen in the skies again, because by the time there are passenger numbers to fill them, airlines would have replaced their older planes with the more economical planes that can fly further.
I don't think I would have ever been able to afford (or want to) pay for a first class flight across to the other side of the world, but I'd always dreamed about one day being able to fly in the top level of an A380 or 747.
As someone who has done a fair bit of international travel thanks to botcon, I'm a bit nostalgic about the big iconic aircraft that I've been on over the last few years... but I guess they'll just be something that lives in our memories and images, like the concord. I doubt there would be too many aircraft museums around the world wanting to waste a lot of space for one of these, just for a few people a year to look at in person.
That was the one Demonac and I took from Melbourne to LA in 2009, for BotCon. I was just so amazed at how massive it was, and it's engines, from being up so close to it. You're sitting in it as it runs down the runway, wondering how is this massive beast able to get off the ground... and yet it does.