What I really wanted to see in that Ramuh video was how much damage it did, but I guess the 99,999 was just a placeholder value for the demo, considering physical attacks were doing 50-200 damage a hit.
I fully expect to be called boring for saying that, and I admit, there's a part of me that wishes I had the same enthusiasm as the rest of you, but gameplay is #1 for me. Always has been, always will be.
Sure, the animation was epic, but if it's too weak then I'll never use it and if it's too strong then I'll get bored of seeing it. Very few Final Fantasy games have struck the right balance with summons. Come to think of it, X is the only game in which I still use them on pretty much every playthrough.
Edit: just noticed Ramuh's staff has an Ixion head. Nice reference.