I would suggest three things to consider if you are starting out. The first is easy and cheap. Purchase a copy of an "RV Buyers Guide". I used to get mine at the local supermarket for about 9 bucks. You can learn RV jargon, floor plans, construction materials, and other stuff from this kind of guide.
Second, consider going to an RV show in your area. This will give you an idea about size of the unit, floor plans, beds, kitchens, baths (wet or dry). It might also help guide you with respect to type of RV, i.e., Class A, Class C, fifth wheel, travel trailer. Don't take your check book, and don't plan on buying at this point.
Third, if you have an idea about what floor plan, size, and manufacturer you are considering, go ahead and rent one you might consider. It's a good to have some idea of your interests before renting so that you get a sense of driveability, parking, backing, leveling, etc. of a unit you may ultimately purchase. In some cases, a dealer might offer a rent-to-purchase program. Once rented, take the RV to a campground near home and practice everything, including backing into sites, leveling, dumping, putting out the awning, etc. These suggestions are one way to see if RVing is for you. Good Luck.
