That's like over twice the base repair cost though. Use beholders. Super cheap, do the job. (Maybe not the crit job if you go into a ~70 DR mob dungeon, but most other jobs.)
Going over the sword list it's hard to find something with all of these qualities.
- Normal or faster (cuts out old favorites).
- Can Bash (cuts out wooden blades).
- Acceptable damage (so trying to steer away from normal daggers).
- Really cheap repairs (talking <1K per point).
- Can be special upgraded if having lots of dura, otherwise easy to re-obtain after wearing out.
Very few things fit all criteria (surprisingly some older common swords cannot be special upgraded), even dropping the last one only lets a few more options into the list, and a lot of it is limited by availability. Been trying to synth some War Swords but the game keeps "oh you want special swords NPCs don't sell, right?" and giving me Cleavers and stuff instead.