These are pictures of my degus before I began building degu homes from wood. As you can see they are all happy enough hoarding thier fluff! You do not need a wooden cage for happy degus. However, I must say that building a wooden degu home was a fantastic experience - I would never go back to wire cages. Wooden homes reduce mess, look professional and are easy to clean (no more bar scrubbing!), I would recommend them to anyone.
I hate the idea of any animal being "caged" - a DIY vivarium feels more homely and cosy! The place where your degus live should be a home not a "cage".
Providing detailed guides on how to construct and build degu enclosure, vivariums and cages. This blog has a focus on stimulating and creating more natural habitats for degus...