If you own an RV, it will likely cost less to go on a trip than if you were to stay at a hotel. However, if you are going to rent an RV, it will likely cost you more than if you were to stay at a hotel. Cost is relative, though, and you’ll want to add up specific expenses as you plan your trip. A minimalist trip in a rented RV may still come out to less than a luxury vacation with a hotel stay.