We're shopping for a new RV and we've narrowed it down to either Class A or Class C. However, we're not sure about the advantage and disadvantages to gas/diesel, costs, etc. We have a couple of friends with a diesel (Neumar is the brand) that've had nothing but trouble with their unit they purchased last yr that had been sitting on the lot for about a yr. Frankly, we've been scared off from buying on because of all the problems they've had - it's been in the shop FAR more often than not and have kept them from traveling to the extent they want to. Many of the things that've gone wrong were not engine or transmission related - but pretty much any and all othere systems in one form or another have had to be tweaked or repaired. So, we'd like some honest unbiased information from some experienced RV'rs out there. Our parameters : initially, we'll be using it about a month max per yr. at some point in about 4-5 yrs, when we transition from the house we're currently in to a new home, we'll need to be full time in the unit for about 4-8 months, depending on how long it takes to build a new home we live in the dallas area and will want to visit mountains, hill country, beach areas - all areas of the U.S. with this unit. we're not wanting to have to live with this one for awhile, sell it and then buy another - our plan is to find one and stick with it. most of our traveling will be between dfw and houston for several yrs but we will take vacations further afield. there will be 3 adults as a minimum traveling (one of us will be in her 80s) and 3-4 dogs (which is the main reason for us buying an RV in the first place - hard to find consistently hotels that'll take us with our dogs). our bench mark to buy is 1st quarter next year and we will be buying a new RV. So, folks, I'd really appreciate some solid input. All we've gotten so far is from salesmen, so that's not really unbiased, is it? Thanks in advance for your time, thougth and consideration. Have a great day & hopefully we'll see you guys out on the road soon!