I get the whole "World feels bigger when you move slower" illusion, but really, who cares about that? Other MMOs have implimented ways of upgrading mount speed, whether it's the whips and spurs that are equipable in WoW or the Featherswept Wings and spurs used for permanent upgrades in PWI. Even Aion lets you increase your flying speed on your wings as you level up!

I don't see why we can't have some method of upgrading such speeds. If anything it would make releasing Cloud's bike a viable option considering that the speed was all that was used as an excuse not to.

Example 1: