Point of dual wands?

I was curious how I'm overlooking the usefulness of wands, let alone dual wands.

Once you you have enough mana regen I would assume most people would just be casting spells rather than using the regular (physical) wand attack. I would assume spells would do far more damage than a basic wand attack. As far as I was aware, +damage stats on wands only apply to wand attacks, what spoint does a wand have other than holding skill gems? Even more crazy having additional wand nodes in the skill tree.

Wands are good for ranged attacks that use wands. Power siphon, frenzy, elemental hit. Get a high physical damage wand, with possibly an elemental damage mod as well. +elemental damage passives along with physical to elemental damage converters such as hatred aura and added fire dmg support, and flat elemental damage that only work with attacks anger and wrath, mix in a weapon elemental damage support, some lmp support, weapon elemental damage mods on gear, flat elemental damage mods on gear, %elemental mods on gear, faster attack support, IAS mod on gear.

Wands definitely have a place in the game, and you can build some monster characters that specialize in wands. Mix in dual curse, and put up vulnerability for more physical damage and projectile weakness for more all damage as all your wand attacks are projectiles, and you are talking about some very serious damage. Then you can go for pain attunement and righteous fire, and you are looking at over 100% MORE damage to your attacks. Given all the increased modifiers you can get for wand attacks, and you are looking at one of the most synergistic builds in PoE. closer to 200% more damage from curses + PA + righteous fire + elemental weapon damage support.

Hmm, interesting.

Are there gems that modify wand attack damage as well? From what I experienced thus far, basic attacks were pretty weak compared to skill gem attacks.

edit: I just looked at Power Syphon, apparently it applifies the wand's attack damage.

you could boost your wand dmg with increased attack speed gem, weapon elemental dmg, critical strikes, added fire dmg, added cold dmg, added lightning dmg, fork, chain, lmp, gmp and e.g. lightning penetration.

But as far as I know dual wielding wand also gives you a cast speed bonus for using spells