Like every issue, there are differences of opinion. I owned a tow dolly 30 years ago. Used it for one travel season & hated it! Every time I got to a campground I had an extra piece of equipment that I had to find a place to store - - a real PITA. Then I had to find a place to store it at home. Left it in my backyard and the next spring I went on vacation in my car and when I came back, low & behold the tow dolly was gone - - stolen! All my friends wanted to know who I paid to steal it because they knew I hated it - - LOL!
I took the insurance money and got my Ford Escort wagon set up to tow 4 wheels down -- loved it! Since then (1993) I have outfitted 8 vehicles to flat tow. Yes, I spent a lot of money to do this but for me it's money well spent. And BTW, I can hook up my tow bar, safety chains, electrical connector and Brake Buddy and be on the road in well under 10 minutes! And I've never had a problem with "wheel wobble" either.