Wow you people must like to rush things. Just because you beat the final boss doesn't mean you're done. You have a long ways to go before you beat the ENTIRE game. I'm just now getting to Bahamu and I have 73 hours on my game. You still have the unts, the optional bosses and the other espers to get. Plus other sidequests. This is the longest FF so far.
I like to play through just the story in the first attempt. I will do some optional things but I mainly like to get it completed then the next time I play through it, I will do the sidequests. I like a long story to keep me entertained but I thought this was over quite quick.