I'm going to play Devil's Advocate here:
"Let's go camping" can also mean:
Check the levels of supplies in the RV
Plan efficient meals due to limited kitchen space and refrigerator storage
Shop to refill supplies; plus groceries
Pre-make some meals
Plan and pack the wardrobe
Put the paper and the mail on hold
Arrange for yard maintenance
Get the house ready for an absence (like take out trash/toss any food that will spoil)
Load the RV with supplies/food/drinks/clothes
Don't forget the food and supplies for the pets
Add items like camera/binoculars/GPS/sports gear that don't remain in the RV
Check freshwater levels, tire pressure, etc
Arrive at RV park; hook up; and set up camp
Cook a meal; serve it; hand wash and dry dishes
Ok, you want a snack??
On and on and on it goes.......
Basically, the wife gets to do the same stuff she always does at home, only with fewer or cruder appliances/conveniences; more mosquitoes and dirt; less privacy. The getaway *could* be marred by bad neighbors/lousy weather/possibly no TV or cell phone reception; traffic jams; or God Forbid - a breakdown of the RV.
If I didn't LOVE sightseeing and being someplace "new" so much - I could get pretty jaded about the whole process, too. I've always said it takes me a week to get ready to go away for 10 days; and a half-week afterward to clean and put everything away for the next trip.
I know there are husbands out there who do their share, or more. But to the OP - what's the "up side" for your wife?
On edit: I hadn't read 2gypsies' post - oops. But maybe that idea needs to be said twice ;-)