As it is right now, double and triple melds basically do nothing but reward people who can afford to throw lots of gil at the process to brute-force their way past the RNG aspect.

It's very intimidating for new/casual players, especially when double/triple melds become the expected norm and anything less is "gimp". That's not necessarily the fault of the players, as they're right to go with what's going to make them the most powerful, but it seems like an indicator of a flawed game system to me.