Also...the gold cost isn't really high. You spend gold on the abilities...but you need those abilities if you plan on using it (which you will).
Quote:
The best thing about druids is our flexibility and utilizing all of our forms allows us to never stop.
To elaborate:
As a feral druid hitting the level 70 5-mans (I was actually 68-69 at the time) I've found all three forms (bear, cat, caster) very helpful. Obviously when I'm MT bear form helps, and when I'm DPS cat helps, but there are other situations, such as:
-Any time there's an AoE pull, I can pop out of form and use hurricane. Lots of damage, and hey it helps the tank mitigate damage. Usually there's another AoE in the group, and between us we burn em fast. If I'm tanking, barskin+hurricane is a great way to get aggro on an AoE pull.
-On murmer, when I had the luxury of a resto druid with an HoT style but NO TREE OF LIFE (I guess it was a PvP build, but still...) I had to pop out and use innervate on him then tranquility the rest of the group to keep from wiping.
-In cases where I take AoE damage or damage where I had pulled, I like to pop out and heal myself (if possible).
-In shattered halls, I DPSed in all 3 forms. On the boss that whirlwinds past 20% I had to use starfire at the end, on the large pulls I would grab one mob to lessen the load on the tank, and stay in bear form while we DPSed the first target down, and I used cat form when I had noone on me.
Granted, I'm feral, and use of forms is what I'm designed for, but that's use of bear and cat form. Yet I still use caster form probably 5% of the time.