I can only tell you what I deal with, and I'm sure you can understand the frustration of repairing a weapon every 20 or so fights for 15-20K. Personally, I find it annoying, and not necessary.
EDIT: I'm referring to yellow status, so 65% or less. After repairing from an NPC, after 2 leves or so, and granted, perhaps a behest (1) - I'm already at 40% or so. For a bow well below my level.
Edited, Jan 4th 2011 4:46am by JerseyProphet2
That's the problem, you're using the NPC which only repairs to 75%.
The rest of us repair our own gear, or spend 30 seconds in a city asking for a repair which costs 1-5g (closer to 1g for the R20 items).
The easiest thing to do, sans actually leveling a craft, is to buy/farm the repair material, and put it in your bazaar along with the item to be repaired. It will facilitate the process.
I can confirm what others are saying, too. Using a rank-optimal weapon, I can grind at least 2 hours without hitting 50% durability.