class a ????

thinking of purchasing a class a. currently have 38 ft Montana. would like to hear some of the forums opinions yea or ney. Love the Montana but in most national parks it's too big. We,ve started small older hard-sided coleman; 27 ft class c; 27 ft terry fifth wheel now the Montana. Plans are to travel to who knows where see some of our great country. I'm asking; was the cost of the class a gas or diesel worth it? Thanks for the reply if you wish to do so; SAFE TRAVELS TO ALL. OLD GUYS RULE