EDIT: Don't buy the scar tactics used by a poster. When you purchase your RV - most likely via a reputable RV seller - they will tell you and show you, as a first time buyer, how to properly store your "stuff" - show you how the drawers must be "picked up" prior to opening so they cannot just randomly open in transit.
The dining tables in MOST RVs (not all) have seat belts to restrain children. My parents does as did the two before this one. Oh yeah - the sofa did too!!
I would NOT recommend traveling with a trailer unless you already KNOW how to handle it. The sway you get can make one panic when driving. So please don't bite the panic button that some are giving you...get educated and informed via people who have been there...feel free to PM me and I will put you in touch with my father who has owned an RV of one kind or another for over 30 years...and yeah - they had the tent trailers too...
ORIGINAL:
My parents started out with a tent trailer then moved up to a Class C. They now own a 40' Bounder with 3 pull outs.
My parents take good care of their motorhome and do not experience a lot of repairs - they bought new and used...
I love to travel with my parents!! You can tow a car in the back and park in one place and tour in the car!! It's great when you want to go "camping" but want "luxuries" of home.
If you go to Mt Rushmore, I would suggest that you stay in the RV park in Spearfish (there are two - Chris's and City park) and they have easy access to Mt Rushmore and a great laundry mat down the street. Chris's has a pool as well as full hook ups and the City Park does NOT have a pool but a AWESOME creek to play in!!
Traveling in Yellowstone there is an RV park at the East Gate (Fishing Bridge that is right on the lake) that you can use...there are 3 or 4 campgrounds in the park..
I would HIGHLY recommend going to the Devil's Tower if you are going to travel to Mt Rushmore - it's a great place to visit - the RV park IN the Tower does NOT have hook ups..the KOA outside does but it is expensive.
Make sure you and your husband get informed on how to empty the tanks - the black and gray water tanks...
I would also highly recommend that you get the "weight" issue down as driving a motor home is NOT like driving a car....it stops differently because of the weight, height, etc. they are also a tad wider than most cars and can be very misleading when driving on narrow roads.
I was fine driving my parents 34' - but the 40' was just a tad too much for me.