Trucking in general is always more negative than positive, and expediting is no exception. In fact, because of the nature of expediting, it may be worse than general trucking. 20 years ago and longer, when expediting was still relatively new, there were far more emergency shipments than there were vehicles to carry them. Expedite trucks were in high demand. Shippers didn't care what it cost to get it there, because the cost of not getting it there was much higher. As a result, the drivers called the shots and got paid big bucks for the loads they carried. It didn't take long for people to draw the conclusion that expediting was a way to make easy money, and lots of it. The increased competition from all those conclusion-drawers have made it so that making lots of easy money is no longer the case.
Now, because there are more expedite trucks than there are expedite loads, it's the shippers who are calling the shots, and they have the luxury of shopping around and bidding out the loads to the lowest bidder instead of giving the load to whoever they can find to take it.
If and when the economy picks up, and the rates and the number of available loads rise, even more people will conclude that expediting is an easy way to make lots of money. They'll be wrong, but that won't stop them from entering the business. They'll be wrong because by entering the business they will be adding to the available expedite vehicles which will quickly surpass the number of available loads, which will cause rates to fall right back down. And so it goes.
Expediting is no longer the brain-dead "have van - make money" opportunity that it once was, and it won't ever be again. You can succeed out here, but you have to educate yourself about the industry, how it works, and be committed to running smart. Those who can't do that don't make it in this business. The shelf life of a van expediter is about a year. Many don't even last 6 months. Unfortunately, there is no shortage of those who think they can make it.