I've said it before and I'll say it again -- if you're not having fun while playing World of Warcraft, you're doing it wrong. Sure, raiding is great, and so is having pockets full of gold. But if you don't find either of those fun, then why bother? Find something that is fun.
Fun, of course, is what the engineering profession is all about. It's certainly not about money, after all -- engineers make very few things that non-engineers can use. But while you're struggling to make money in MoP, you'll at least be getting a lot of new perks to enjoy while doing all that struggling. There are cool new pets, new conveniences, new gear, a new world-altering device, and even new mounts -- yes, mounts with an s!
Exciting times are most definitely ahead for engineers. So strap on your goggles and have a robot roll up your sleeves -- we're going to dive right in.