Plastic or metal stands exist and are more durable than electronic devices themselves. Isn't the lifetime of cardboard stands, weaker and probably less durable, more adapted to quickly obsolete products?
This single-wall corrugated cardboard only requires cutting and bending, no glue necessary. It can be taken apart and flattend to be put away.
Several layers are glued together. To achieve higher rigidity, the flute of a layer is perpendicular to the one of next layer. This stand can be taken apart and put away flat.
Even more layers are glued together to support the weight of the tablet. This stand can be stored flat. The advantage compared to the others is that the angle between the screen and the table can be adjusted.
This non-corrugated cardboard stand gives priority to esthetics over simplicity.