Bought a bottom level diesel last winter and I'm very happy. Chances are the diesel people like what they have and the gas people like what they have so take that in to account when considering advice. The top end gassers are pretty close to the bottom end diesels in price. We are talking $150k to $200k here. If price is a major consideration it make sense to look at a gasser, which can be had for considerably less money. If you have the money for a top end diesel you are rich because they can go to over a million. If you are in that class you probably aren't even going to consider a gasser. Now the real question is what to do if you are not at either extreme. The bottom end diesels are very comparable the top end gassers as far as frills. I have one. I have a Berkshire 38A. 40 feet, 340 horsepower, around 700 BHP (makes a big difference in the mountains), 1 1/2 baths, washer/dryer, bunk beds, full queen size main bed, tons of storage underneath, air ride, air brakes, satellite system, 11-12 miles per gallon, 1,200 to 1,000 cruising range between fill ups, larger storage tanks, quieter ride, gen in front for better sleeping, etc. That is a bare bottom diesel. I could go on and on but I think you get the point. The bottom of the diesel market starts where the gasser market stops, with some overlap in the middle. Buy what you can afford. My Berk cost $179k with every whistle and bell offered. List was $263k so don't fall for the phoney balonie list price. Every dealer deeply discounts what they sell. Go cheaper and you will miss out on something but you will have more money in your pocket. Go the diesel route and you are going to be more comfortable and perhaps happier but your wallet is going to take a hit. Good luck.