Well the current pointlessness of making repair kits was the main idea for giving them an added twist. Another thought I had was to perhaps make the crafted good quality kits more durable, as in, every 20 points of quality gives an extra use. Thus, store bought kits could be use twice -- I believe they are 50/50 now -- a crafted at 60 could be used 3 times, 100 - 5 times and etc. Bonus durability could be awarded for very high quality kits, say 25 uses for 200 quality, 30 for 220 40 for 240 and 50 for 250. Also allowing repair kits to be repaired under this scheme would also increase the uses available as your store bought kit could be used twice then repaired. I would think at least 5 maximum quality should be lost per complete repair in order to limit the number of times a kit could be repaired.
I think something should be done unless repair kit crafting is going to be eliminated completely as steel stocks were being offered for sale at 2000 trias today on the auction tab. I don't mind making my own from scratch but it is easier to just buy kits from npcs.