if all you have is the starting sword I would just buy a new one. You need to have the skill leveled enough to repair it even if you are using the correct craft.
When it comes to sitting around not doing anything for long periods of time, only being active for short windows, and marginal changes and sidegrades I'd say FFXI players were the perfect choice for politicians.
And where can i buy a new sword from? I went to the weapon shop in both the forest city and Uld'ah but neither sold anything better than the starting sword, infact that was all they sold. starting equipment and a decent shield which i'm saving for.