What is Motorhome Payload? What You Need to Know.

When we were first looking for a motorhome the payload was something that didn’t even enter into the equation. It never really occurred to us that there would be a maximum limit of the amount of stuff you can take with you. 
We thought you could just load these vehicles up with whatever we could fit in there and everything would be fine. After all, is that not the purpose of owning a motorhome, you can take all your stuff camping with you?