A couple of thought as an class-A motorhome owner over the past 20+ years...
1. Sprinter campers are indeed expensive. And they are still cramped, and way limited in capacity - water, sewer, power, space.
2. Truck campers are great for some offroad travel, but still very cramped. Works out okay for a loner, but two people are constantly bumping into each other in them. And yes, they are expensive and heavy. Also very limited as per point #1.
3. RV's are not practical. At all. They're expensive, depreciate like crazy, are a maintenance headache even new (sometimes worse), get crappy fuel economy, and in a lot of areas any campgrounds are full up so you have to reserve six months in advance. It's a LIFESTYLE choice. We call it 'Wheel-Estate". A poor investment for sure. But WAAAAYYYYY fun. Especially with a family.
4. I loathe hotels/motels. Sleeping in someone else's bed - well, many people's bed - is, well, just yuck. LOL Just something about that, and that carpet. OMG. I find the $200 places aren't as bad. LOL
5. Generally you can't bring a pet into a motel. Well, some you can, but if you have 3 dogs it's a bust. Sure you can leave them with a sitter or at a kennel, but there is the cost and some just don't do well in that scenario. With 3 dogs and 3 kids hotels are not a great solution. Plus, many out of the way places, off the grid places, there is no hotel-motel.
6. Van camping is over-rated. They're cramped, cold (or hot), expensive, and extremely limited. A car and a tent is better in many ways. Both definitely have their pros and cons.
7. With an RV you bring your house with you. You have your own bed, your closet, and your own bathroom, and your own food. We hate restaurants too. 'Nuff said.