theonlyone: There is really no benefit to throwing weapons. They get a range bonus and that's it. Bows get 2 arrows at expert and Guns are just good altogether.
Would there be any reason to use throwing weapons in the game? Strength doesn't affect their damage and unless it does that's a rude awakening.
It depends on your playing style.
Fair warning: some of the following contain
minor spoilers. Consider yourself warned.
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From my perspective, the benefits of throwing include:
1) Ranged attack, especially in turn-based. This means little or no armor damage from rock and fire monsters; metal chakrams (and of course Azram's Star — more on that in a bit) rarely if ever take damage either.
2) Throwing is IMO the best ranged attack style. Guns need bullets. Bows need arrows. Throwing needs neither. (And as an added bonus, allows you to toss grenades with accuracy as well.)
3) Throwing is itself tech-neutral; though admittedly, the best weapons (mystical chakrams and Azram's Star) are on the magical side.
4) Not having to put points in Strength is an advantage; it means I can put more points in Dexterity sooner, and vastly pump up my attacks per turn. The only thing I need ST for is to avoid encumbrance penalties.
5) The Professional Knife Tosser background. Almost a full rank in Throwing means that I qualify for expertise with 9 DX, and mastery with just 15. (On top of everything else, this means that if I'm planning to pursue the Old Gods' Quest, as any good min-maxer should, I can hold my DX at 16 and not feel that I've "wasted" any points in the pursuit of Throwing mastery.)
6) Azram's Star.
The best ranged weapon in the game. There are others which are more powerful, both ranged and melee; but none combine its power, speed and range into a single weapon. Unlike 100-MA arcane weapons, the Star maxes out its attack with a MA of only 75. And it has one of the coolest graphics in the game, especially if you've seen the move
Krull. (And if you haven't, shame on you!)
I have taken down the final boss with nothing but this weapon. It's not as efficient as 20 ST plus the best melee weapons available, but it still easily gets the job done. And for anything less than that final boss, it mows through them like a hot knife through butter.
My two cents; a penny after taxes.