Guild Wars 2

I noticed that the PvP weapon vendor sells Steady PvP weapons, but they do drastically less damage. What exactly are they supposed to be used for? Is there any point to them?

You can use them for testing purposes, to see how different builds affect damage of certain skills with 100% consistency.

Why not use the other weapons for the same purpose though? How do they differ other than being higher damage?

you get to get the exact numbers of actual damage/defense of a skill or item.

The regular pvp weapons have a damage range where as steady weapons do not.