^ Because in B&R, it was so obvious that the only reason for Batman, Robin and Batgirl to take time out from going to fight Freeze and change outfits was so that the studio could sell more action figures. 'Batman - snow suit'. 'Robin - snow suit.' 'Batgirl - snow suit.'
This isn't at all comparable to Bale's Batman and Lucius Fox discussing quite logical upgrades to his outfit; especially in a series which has spend some time trying to show how Batman and his technology would work in the real world.
Even as a kid I remember watching Batman & Robin
and scratching my head as to why Batman, Robin and Batgirl were changing suits. Mr. Freeze is literally freezing the entire city but Batman and his partners have enough time to change their outfits.
With Nolan's Batman movies, especially The Dark Knight
, I always appreciated that Nolan took the time to explain why Batman changed his outfit besides just showing up randomly with a new costume without any explanation. Heck, he even made practical use out of the Bat-motorcycle. Everything needs to have a reason and purpose in Nolan's movies and I love them because of that.