Alright, I must know. Why is everyone so thrilled with tubs??

I now have a bit of experience with them, as I use them for QT and was keeping my older BP in one for the winter, and I just do NOT see the appeal. The only pluses I see are:
Yes, they do keep the humidity very level most of the time.
Yes, they are lighter and cheaper than tanks or display cages.

Other than that...
They aren't as clear as tanks, so it's harder to see the temp readings.
The dips and curves of the plastic make cleaning a bit harder IMO.
I still have to insulate the back and sides to keep the air temps high enough.
They aren't really ever the right dimensions. You either get too short and too tall but a good length, or way too long and too low with a good width.
It's far easier to latch a tank screen top than a tub lid! For the screen, you just use strong clips, but for the tubs I have to use bungees that are a pain to take off and put on.
The temps can be just as hard to regulate, if not harder, since opening the tub lets out all the heat, but opening a tank doesn't seem to release the heat that fast.

So, maybe I just have really bad luck with them, but I don't see the wonderful qualities everyone talks about...