Crowds at the Living Seas are better than ever...
Ever since the addition of Turtle Talk with Crush (and sometimes Dory, depending on the (random) show you see), and the shark area, and the new Nemo related displays, there are actually crowds at the pavilion!!!
They still need to update a few simple things, like some of the old "educational" touch screen videos that still refer to old things (especially the old layout, which is now long gone).
As to the "empty tanks", if you're ever there during a fish feeding session, you'd be amazed at the swarms of fish in the tank.
I still do hate the (although short) wait to get in and still think that you should load straight to the hydrolators, and the theatre should be part of SeaBase Alpha showing 3 different films an hour (and increasing the capacity of the pavilion). This would place you in the imaginary SeaBase for your whole time, instead of waiting to get in, and having to see a film before getting there.
And aside from the memorabilia in the "line", the whole line and the 5 minute waiting area are a complete waste of space and could be better used.
Why the exit hydrolators weren't built with the same effects as the entrance hydrolators was "cheap".