It would not have been impossible to repair no. It just would have taken time. I guess if he really wanted the wand so much he could have waited but he got annoyed and left. It was still a pointless inconvience though.

I also have loads of items sitting in my retainer i would sell but getting them all repaired would require ages of shouting in the city and cost me money. How am i supposed to make a profit if its costing me money to repair everything i want to sell?