I like tanks and tubs. But, I only really like tanks for certain species..
As for tubs, what I really like about em is: Light in weight, can control heat & humidity easier, comes in a ton of different sizes, have locking lids, easy to clean, not even pricey at all.
Tanks are harder to control heat & humidity, can get heavy depending on tank size, can break if dropped (LOL..), get pricier as you keep upgrading, and are more of a hassle to clean.
But, I like using tanks for display. I like designing tanks a lot more than designing tubs, it just looks better with tanks. My Beardie has a tank, my Mexican Black Kingsnake has a tank, my Dumeril's boa has a tank, and my Kenyan Sand boa has a tank (humidity was too high in the tub I put her in no matter how many holes I drilled).