I just noticed...Of course then GW would probably also drop vehicle cover saves, return transports be being not-very-good, and otherwise smack vehicles with the nerf bat. And then transports would be back to being rare.
As you say, old costs with current rules would be much better, or current cost with some of the old rules to make transports not so crazy good.
It's tweaks like this that are why I want 6th ed. In 4th, vehicles weren't good enough. Now, they're too good. If GW does a good job, we'll keep iterating towards a better and better core rule set. Hopefully that's how this actually turns out.
Your avatar is pretty awesome!