There are more to cb radios than popularity. The Cobra brand has proven it's self time and time again. Cobra CB Radios and the people that use them have decades of product testing under their belt.
I have no reservations in saying the Cobra 29 LTD Classic is the most Popular CB Radio in North America. The 29 LTD is the all time favorite of truckers. It's tough, easy to work on and stable. Some cb radios have their hang ups. For example some CB Radios will experience receiver overload if someone "keys up" too close to the cb. Most modern versions of the cobra cb radio line do not suffer from extreme receiver overload from close vehicles. Truckers need to talk to each other when they are just a few feet apart too. Cobra knows this and implements this in to the electronics of their radios.
No bold claims, just real world experience. Ads for Cb Radios are boring. Here is some real world news about the durability of Cobra CB Radios.
I once knew a kid that plugged in a Cobra 29 LTD Classic Mobile CB Radio into the wall outlet in his house. Yes, he plugged in a 12V CB Radio in to 110 Volts AC. The technician that fixed it had a chuckle. The only damage was a 2 cent diode. It was fixed in 5 minutes and back on the air for under 10 dollars.
Here comes the funny part. The kid with the Cobra 29 LTD Classic asked people on the cb radio how to "tune his cb antenna". People on the cb told him, "you tune your antenna by unplugging it from the radio and keying up for 30 minutes". The kid would then unplug his antenna and transmit for 30 minutes. Those on the radio were getting a laugh as he would come back every thirty minutes asking "is it doing any better?" People on the cb radio would tell him "do it some more, it's getting better ".
And now the punch line. The kid came back the next day saying "I bet it's doing real good now, I did it for over 9 hours while I was sleeping". Meaning, the kid left his Cobra 29 keyed up for hours with no antenna in the back, thinking he was improving something the "SWR". Someone is probably using that same radio today.
"You are going to blow the finals out of that radio". We have all heard this one. It's simply not true. We have all heard people transmit music for many hours at a time. Old time CB Radio users know they will go for months at a time. Perhaps years. Without making bold claims, in my experience Cobra CB Radios are the most reliable. Cobra CB Radios take Darwin Award style abuse and keep on working.
Other reasons to get a Cobra CB Radio. They are common. In the rare event something goes wrong, they can be fixed by any "Radio Doctor" for very little money as parts are common stock.
Cobra sets the standard in Cb Microphones. Most aftermarket cb radio mics are wired "4 Pin Cobra". Sometimes called "Standard 4 Pin".
The power cords and everything to do with Cobra Cb Radios are available at most cb shops and truck stops. There has to be more aftermarket accessories for Cobra CB Radios than any other brand of CB Radio in America.