^I was just about to say that upon seeing Target Field. Like Cirrus, I read all this discussion about the
retro era but Target didn't look retro at all when I decided to take a look at the stadium for myself. I think a more appropriate term would be
open aired when discussing the current trend while roping in the non-retro stadiums into the category.
btw while I'm at it, here's Seattle's tranformation (as if nobody is aware...):
Seattle Kingdome (erect for less than 25 years)
source
its replacement:
source
and Seahawk Stadium nextdoor:
source
source