A less common, but still cool (imo) feature of science fiction is hover tanks. Be they using antigrav, quad-copter style rotor blades or just the inflatable skirt of modern hovercraft.

However, they suffer a lot of the same issues as combat mecha, in that they rely on very fragile and complex tech, without which they immediately bite dirt. Additionally they just can't pack the same payload, meaning they can't even armour up their weak points.

However, just like [this question about mechs](https://worldbuilding.stackexchange.com/questions/10320/plausible-reasons-for-usage-of-combat-mecha), our world in question can build hovertanks to a similar cost as other combat vehicles. When would it be an advantage to use hovertanks over their tracked/wheeled/legged cousins?