The biggest problem I and ALOT of players have with this current materia system is just the whole "Throw money at it until it works" mentality behind getting these ungodly melds. It really gets annoying when someone has those "Oh-so-coveted Triple Tier IV STR Felt Bracers" that you've been trying for like, weeks, blowing up millions, and someone who could quite possibly be much MUCH worse at the game than you, can get it in one try (not likely, but it could happen) just because they're lucky. The only way to negate the luck factor is to throw copious amounts of gil at your meld until it works, which is just obsurd beyond all belief.