Agreed, repair cost is too high, with this price for repairing is impossible to have enough coins for anything else. All of our savings goes to repairing. I'm pretty sure everyone would be very happy if this cost was decreased.
I have the same problem as sage, we can't use our bows in it so we take time to complete that quest. Before the reser I only completed it 10 levels later, when I was level 28.
Edit: I forgot to mention, but there is an staff and a sword in the plagued quests that have bonus damage againist the plagued, but there is no bow, so again the rangers are in disadvantage.