Sarcasm perhaps, not sure...
In thirty years, will we be writing about still in productive service 30 year old DA-40s? Will they have lasted? It's a certainty that there will still be Cessnas flying with 60 years experience.... Like it or leave it.......
If you want to train for float flying, it won't be in a "new" plane... IO540 makes a very good point.
In Canada, our tourists are still flown commercially in well maintained 60 and 70 year old aircraft. I'm certain that some of the posters here secretly yearn to fly those Beavers and Norsemans. The new Caravans aren't pushing them out of the way very quickly.