torilen wrote:Or is that what you were saying...that no shield should have a better price, since you're giving up more?
Precisely, though the question is how much better. Remember that you also have to pay for the shield, so if you can only afford a weapon, it might as well be a two handed weapon...
torilen wrote:Also - would you differentiate between a thrown weapon and a simple range weapon (crossbow, sling, bow, etc.)
I would say that a range weapon should have a higher price that a thrown weapon...
Yes, I also feel that there is a major difference. Of course a proper ranged weapon is better than a thrown weapon at range since it reaches longer and have no chance of breaking (with my rules). On the other hand, a thrown weapon is of use in close combat, so...

After exploring different value systems I have so far come up with two sets of modifiers. My initial one:
Allows no shield -40%; Diagonal attack +20%; Thrown weapon +20%; One less defence +20%; Two less defence +60%;
Price step: 25 gold
This gives the correct cost for the reference weapons. Here are some other prices...
Spear: 175g
Scythe: 150g
Sledgehammer: 300g
Longsword: 300g
Greatsword: 525g
Here is an alternative set of modifiers which gives the right reference prices.
Allows no shield -47%; Diagonal attack +28%; Thrown weapon +22%; One less defence +15%; Two less defence +50%
Price step: 10 gold
Spear: 180g
Scythe: 130g
Sledgehammer: 260g
Longsword: 320g
Greatsword: 610g
I still like my first option more though...
