I own my own RV (25' trailer) and there are definitely some upsides to RV travel. First and foremost is food. You don't have to go out to eat. Most RV's have stove, oven & microwave. Plan ahead and make economical meals to cook in the RV and you will save a ton of money over eating out. I recommend cooking things ahead and putting them in the fridge or freezer. I often cook hamburger at home & freeze, cook spaghetti pasta & put in gallon bag in fridge. Those sorts of things make mealtimes in an RV a breeze.
I would also like to add that it's nice to be able to use the CLEAN bathroom whenever you want.

No waiting for a rest area or looking for a clean place.
There are some awesome RV parks out there. If you like staying in the city you can find an rv park, want to feel like you're camping then stay in rural areas. Many RV parks have pools and other amenities. I highly recommend strapping bikes to the back. It is a must do thing with kids. As soon as you stop for the night they can hop on bikes, get out of your hair & be exploring.
I think you will find with an RV that you spend more time outside. Think about the last time you sat outside with your family around a campfire and watched shooting stars. It's an awesome way to connect with your family.
Now here are the downsides...rain. I hate being stuck inside an RV with kids if it rains. Yes, we take movies to watch, games to play, but eventually they get bored. If it's going to rain stay near a city that has a movie theater, mall. Even check out local community centers or pools.
Depending on the floor layout & closet space, you could end up with kids clothes EVERYWHERE! Living with kids in tight quarters can be a bit stressful to say the least. I recommend you bring sleeping bags for the kids as it's much easier then trying to make 3-4 beds every day. If you do rent one make sure that you can still walk around, even if the beds are out. There is nothing worse then having to go to the bathroom at midnite and stepping over the top of sleeping kids.
RV traveling does require work. When you stop for the evening you must level the trailer, light the hot water heater, pull out the awning, set up lawn chairs, hook up generator or electricity, hook up water, etc. You must also know how to keep the toilet from stinking, know in advance where you can empty your gray & black water tanks, etc... A couple of weekends ago my DH was emptying our tanks at the rest area near our home and a couple of men approached him. They were renting an RV for vacation and had no idea how to empty the tanks! DH gave them a quick lesson and left them with a handful of disposable gloves. Seriously, nobody at the dealership told them they would have to empty the tanks or how to empty them! You've gotta ask yourself if your DH wants to play septic man while on vacation. It's not hard if you know what you are doing, but if you don't and end up with sewage all over your shoes...well that's not a fun vacation.
I think the trick to having a successful RV vacation is organization and planning ahead. I don't want to discourage RV travel, because I obviously love it. But truly thinking about it I don't know if I would recommend renting an RV. Just because there is a learning curve, there are many things you need to do. None of the things you have to do are difficult or time consuming, but learning 20 new things to do on vacation might not be so fun if your're looking for a relaxing vacation.
If you're looking to save a lot of money on food, want to be close to your family (literally), love the outdoors, can plan ahead & be very organized, and want an experience similar to home...then renting an RV might be for you. If you want a restful vacation, go the airplane and hotel route. I wouldn't trade my RV for anything, we use it year round. I think renting is a good way to figure out if you might want to buy one in the future. But if you rent, just be sure that both of you are present and ask lots of questions when you rent. You need to know how to run everything correctly, otherwise vacation won't be nearly as fun. If you're the type of person that loves camping, but wishes you had good cooking facilities and a real bed, then RV's are for you.
