This is an old revision of the document!
Buying pre-built or building your own
Buying a pre-built DIY campervan or commercial campervan ("Class B") would seem to be a real win. In practice, though, there are many advantages of building your own.
pre-built
building your own
much cheaper
you install what you want and are not stuck with what someone else wanted or thought you might want
you put things where you want them
you control the quality and specs of the components
you can fix things on the road because you know where they are, what they do, and how they work