It all depends on where you're going...
If you're going wilderness camping, towing a small 4 wheel drive toad on it's wheels is probably the way to go.
We finally decided that we could rent a LOT of cars for the 20+ thousand dollars that it cost to buy/maintain a toad, and the gear involved in towing it. Also, pretty much forget backing up when you're towing... you REALLY have to think and plan ahead when you're towing so you don't get into an uncomfortable situation, like removing a gas pump with the toad.
I didn't need the stress of towing any more, so now when we get to the campground, we call Enterprise, they come and get us, and for less than a hundred dollars for a week, we have a no hassle and no maintenance way to do our visiting and sightseeing.
Remember, everyone's situation is different, and this is just what works for us!
Happy and safe camping!!