I still use the CB for what it's best at: getting and giving traveling information among traveling strangers via line-of-sight communications.
Now it's true that the HF frequencies of the CB have an inherent limit of maybe 10 miles on flat ground. However, it should be noted that VHF/UHF ham radios also are line-of-sight limited to the same range, except they sometimes can access repeaters via line-of-sight which are located on mountaintops and therefore can offer significantly longer distances. Unfortunately for them, very few people will be tuned to any given repeater at any given time, which greatly diminishes any usefulness to the traveler.
Yep, the CB is still king of on-road communications for a number of reasons, including:
-the thousands of big rig drivers who still use CB
-the low cost and availability of CB radios and antennas
-the fact that no licenses are needed
-the simplicity of the CB radio: plug it in, put a magnet-base antenna on the roof, and talk. Of course, it is best to check what is called the "SWR" reading on the antenna line with a $25 SWR meter, but it's found to be not absolutely necessary to do so with most reasonable CB antennas out there, especially if they are at least 3 feet tall: the taller the better.
-the "party line" aspect of being able to listen in on and communicate with the on-road community, specifically on the truckers' channel, which is Channel 19 in most areas of the US except in some areas on the west coast, where it may be Channel 17.
-although not always, often truckers will announce major road problems
-using the truckers' channel if it is being monitored, which it should be, vehicles can inform each other of equipment problems such as trailer tire flats, lights out, flapping tarps, shifting loads, and in the case of RVs, awnings unfurling, TV antennas left up, steps out, etc.
The fact is, there is no other device which can serve such direct driver-to-driver communication needs among strangers on the road.
As noted, the CB is not good at reliable long-distance communications. That crown is on the head of the almighty cell phone. However, if no cell phone service is available, the VHF/UHF repeaters may sometimes be useful, but they cannot be relied upon at any given time or place; only the satellite phone can do that.
For sure, the CB is still used and useful. If it weren't, there wouldn't be all those CB antennas sticking skyward from the mirrors or cab-backs of those big highway trucks we see every day.
For me personally, I have a Wilson 1000 magnet-mount 62-inch CB antenna sticking from the roof of my F250, which I use as my RV trailer puller. It's proven to be very useful to me through the years as a source of information for on-road conditions which I will face just up ahead. I provide such information to others when the opportunity arises. Unfortunately, many drivers only turn on the CB when road conditions become questionable like traffic build-up, but still many drivers do monitor for problems via their CBs.
Of course, today there now are very useful apps for cell phones that can do even more than the CB in some ways, such as road conditions via Google Maps, but they cannot do what the CB can do in some other ways that only immediate anonymous driver-to-driver communications via the CB can supply as noted above.