8k for 4 ammo? Seems a bit strange, and it's damn hard on the wallet for a dedicated thrower, who basically has to use 3 stacks of an 8k weapon minimum.
Let's use blunt one handers as a basis for comparison. The warhammer costs 7550, and deals 31 damage. However, for the not-so-rich, the Iberian Mace costs 4294 and deals 28 damage, 3 less damage, but it also has some extra reach. It's a cheaper alternative and has a plus-side aside from cost, while losing hardly any damage. This trend continues with another knockdown one-handed available for 2300.
What does thrown have? Jarids for 7700, and deal 40 pierce. Ok, that costs more then the warhammer, but you do need more then one equipped if you're a dedicated thrower, so the costs add up quickly. Seeing as most people don't like sinking 24000 into items without counting armor or a shield, lets look at the next cheaper option. 3856 gets you 34 damage and 4 ammo Javelins, but it's still absurdly expensive considering it's still only 4 spears, and a dedicated thrower would still need to equip more then one of them. So what's next? Wardarts, 1200, and only 25 damage.
A simple change is in order, I feel. Here are some reccomendations;
1. No separate upkeep costs for thrown items. If you equip 3 war-darts only one should be able to break. I feel that this quality should be unique to thrown if possible, as asking a guy using two-handers to only carry one two-hander for the sake of upkeep isn't much, but asking a dedicated thrower to only use 4 spears per battle is quite unfair.
2. Lower cost for higher-end throwing items.
Lastly, what I feel would be the optimal fix;
3. Lower cost for mid-tier thrown (Javelins should be closer to 2k each) and higher damage on bottom tier thrown (war darts should be 30 damage, not 25). This would bring the cost/damage ratio more in-line with the other weapon types.
That's all I got. Thanks for reading.