I agree with you. When I was a kid my Dad would put the family in the car during the hot summer months and take us to A & W for a large frosted mug of their root beer.A & W, great burgers, great root beer, but as time went on, they changed their recipies as well as changed the way they made their root beer.
Found one still open a few years ago. The root beer tasted like a poor imitation of the original. ...
If you ever find yourself in Pueblo CO, go to the Shamrock Brewing Co. and get yourself some of their root beer. They make it in house, and it's even better than the old A&W rootbeer. And, not only that, but they also have several different kinds of real beer that they also brew in house. Their food is pretty excellent as well. Every time I make it to Pueblo, I always make a stop there for a meal, as well as to get a jug of their homemade root beer.