Quote Originally Posted by Psyke
There's a trophy for that? Argh!

On another note, one stupid thing I did was I sold all the components away when I realised I could buy weapons. Then the next thing I knew the weapons in the shop sucked and they introduced upgrades while I already sold my stockpile of components for gil. Damn.
No worries, Chapter 11 is a good place to farm gils. You also unlock more parts shops as you progress further into the game. Upgrading weapon is expensive so try maximize your item exp. Good rule of thumb is animal parts give low exp but increase the bonus multiplier and the machine parts give high exp but will decrease the multiplier. I usually just give a weapon 20 or so animal parts so the bonus exp become double before i give it any actual exp.