Welcome to the Airstream owner's community. You selected a very good model and floor layout. I think a 27 foot length is very well balanced for room, comfortable, and towing. Further, Airstream travel trailers last a very long time.
We have a 1975 Overlander 27' that is only 47 years old, see photo. For sure it is not as nice or well built as your new Flying Cloud, but still... My son owns a 1969 Globetrotter 21'. Too small for my tastes but he enjoys it.
Best of luck on all your travel adventures.
WBCCI #8607 VAC Region 11
KnowledgeBase trailer renovation threads: 69 Globetrotter, 76 Sovereign, 75 Overlander, 66 Trade Wind Such fun !