I also loved how Bruce, despite his age, could relate to Terry in some circumstances, like after one of the Royal Flush Gang storylines, and Terry is obviously a little annoyed about Ten, and Bruce just jovially tells him "Let me tell you about a woman named Selina Kyle', as the show ends.
It was just so much win, and the best part was that it wasn't even a group of guys trying to top what Dini and Timm and the gang had done with the older show, it was them actively referencing and building upon what they'd established, and it worked so well.