What they don't tell is "the rest of the story." In many divisions of this industry you are not covered under the FLSA. There for OT pay, benefits and retirement are not part of the package. You are required to "go to school" (by law) in order to obtain your CDL (as it should be) but you ARE NOT classified as "skilled labor." Your vocation is highly regulated but still does not afford you any special considerations for abiding by those regulations and knowing them in every state you travel through (it's part of the job so learn it and love it).
You will be away from home probably more often and for longer periods than you may have expected. For some this will work well for your particular situation and for other it will not work at all so consider local work instead of regional or OTR.
Your road expenses are also going to be more than you anticipated as truckstops are very expensive as they now also cater to the tourists as well as those who are there as part of their jobs but the prices reflect tourists more so. Driving is not the only thing that comes with the job, long hours, accessorial work (tarping, strapping, tailgating, unloading, counting freight, throwing chains, truck repairs, paperwork out the wazoo (50% of every business is the paper side of it and you as the driver are not to be left out) etc. Some of these accessorial jobs come with additional pay and some do not depending on each individual trucking carrier. There are good carriers out there but there are far too many carriers with very questionable business ethics which see drivers as nothing more than a body in a seat.
The industry as a whole is continually fluctuating. Freight rates and drivers pay does so as well. Right now they are both on the lower side of average due in large part to the economy. If people can't afford to buy there's less freight to ship, too many trucks for too little freight which also affects driver pay (trickle down economics).
Even given all that (and these do not cover everything) the vocation of a CDL Driver does suit 100s of thousand to a T. So if you are planning to make this a career move, think long and hard. Not everything is as it appears on the surface. Do your homework first before diving in head first. There's a big push on right now to rebuild the driver numbers, a lot have been lost during the past 4 years economic slump. Maybe they are seeing improving conditions most of us have not yet realized (hopefully in the very near future).