I actually think VIII had the most convoluted, hard to follow plot of the whole series. : / I don't mind the length of a plot so much, though, because the longer the game is, the more I feel like I got my money's worth. I'm a cheap bastard, what can I say?
No, you're not. Time is relative, but yes, a long game means you're getting more out of it, those the cost to fun ratio increases. Which is what pisses me off with these 20 hour games being considered 'too long'. I'm sorry, but I'm going to be paying nearly 60 bucks for a game, I want at LEAST 12 hours, NO LESS.
That being said, if the game is awesome and clocks in at 10 hours? Then yes, it's worth it. If the game drags on for 60 hours, and is dull and dreary? No, it's not worth the price.