I have a camper van. It's a small one as it's just for me and DS, so it wasn't very expensive, €3000, and it has everything we need. A couch/bed, captains chair front seats that swivel to use as armchairs, oven, hob, grill (electric and gas), a fridge that runs on electric and gas, a proper sink and draining board and, most importantly - a little bathroom with toilet and mini-shower. And lots and lots of storage. The cost of the van itself is pretty much negligible, as they hold their value really well. In fact as I'm crafty I have jazzed it up a bit since I got it, it's now valued as worth more than I paid for it. Insurance for a leisure vehicle is dirt cheap, €280pa.
I use it throughout the year from early Feb to December. It gets used on a lot of weekends through the school year, leaving straight from school on Fridays. And a lot of holidays in the summer. I bought it following a horrendous tent camping experience where despite a lovely weather forecast the rain bucketed down and we were trapped in a damp tent for about 20 hours. (It didn't leak but the condensation was unreal.) And I had to make mad dashes to the campers kitchen to make food that was disgusting by the time I'd made it back to the tent. A huge, huge factor for me as a single parent is also the freedom of having my own toilet to safely use when I need to pee in the middle of the night/early morning and can't leave a sleeping DS.
I do have a huge drive way that my van fits easily on and it is tucked up on an unobtrusive spot that doesn't interfere with my daily use of the drive. It also proves very handy for day trips as it's nice to go to the beach with a fully stocked fridge and be able to have a hot lunch followed by ice-cream. Or to go for a winter forest walk and have hot soup/hot chocolates when you want. The same is true for camping. I never need to bother with onsite cafes or shops as I have a well stocked fridge and freezer, so am paying Aldi prices for treats.
Is there a degree of expense to it? Yes. I'd say across a year I spend about a grand and a half on van expenses and campsite fees. But for that I have about 80 days of holidays in what really is lovely comfort. Waking up in the morning after a good sleep on my memory foam bed, putting on a proper coffee and warming a slice of quiche/frittata/healthy breakfast brownie while using my own bathroom. Then setting myself up outside and having breakfast overlooking the forest/mountains/lake/beach/etc while reading a book/browsing online/even watching a movie. Letting DS sleep very late as he tends to in the van while my friends rouse themselves and join me, is just a super way to spend a weekend/holiday break. The day will continue with my DS and his friends having freedom for all sorts of adventures that kids these days so rarely have. I have all the luxury of being in a tiny house and all of the beauty and freedom of camping. And it really is an amazing way for a child to grow up. Kind of like an Enid Blython adventure crossed with a 1950s rosetinted-glasses view of American childhood. It's not so much about a holiday, but about a lifestyle.