I like the older stadiums, too, but I suspect that neither you nor I attend a lot of games now. Whenever I've attended an MLB game in recent years, the fanbase has trended younger than I remember when I was young myself. I think that a large share of today's fans don't appreciate the experience the same way we do.
I note that the older stadiums are all in very large metro areas, except Kansas City, whose stadium is now over 50 years old (opened shortly after the Vet). The Rogers Centre is about the same age as Tropicana Field. Fenway, Wrigley, and even Dodger Stadium can be sold as historic treasures, and they've all been updated substantially in recent years.
I think there's a reason that most teams have felt the need to build new stadiums every 30 to 35 years (20 years if you're the Braves). Two teams with newer stadiums than Tropicana have built new facilities. The next stadium built after Tropicana (White Sox) isn't doing well. Montreal's stadium was almost 40 years when the Expos moved. The Oakland Coliseum is well over 50 years old.
It will be interesting to see how the stadiums built around the time CBP park was constructed are viewed in 10 years.