I agree, Anne. You get to eat weird food at strange hours, and go to bed and get up whenever you want. No witnesses to doing crazy things. And you can change your mind in a flash without having to discuss it with anyone.
In an RV, you also get to use all the storage space for yourself, and you have lots of water and tank space because you are only one person. I only have to dump my tanks every 3-5 days, while families have to have full hookups or dump tanks almost every day!
I love having company, but I am even happier when they leave and I am by myself again. The only caveat is that I could use a tall person every once in a while.