Mmmmmm... nothing to do with what you show. The DIY bookchair is far more stable when poised on your belly in bed or sitting. The design is simple yet much more ergonomic than these stright rod based stands. It frees your hand and allows for a decent amount of freedom of movement without falling. The little curve on the base of the DIY fits your body curve and holds.
Probably the biggest difference is that it rotates the reader so, when you lie sidewards, the text lines are always parallel to your eye line. You always keep the relative position between your eyes and the reader, whatever your position.
I have been using mine for months (made the 1st prototype two days after I got my reader) and I don't even remove the Reader from the stand. When I a m not reading, it is like a picture frame. I just made a cloth cover to prevent it from gathering dust when not in use.
And if you do it yourself, the materials cost is below 6€ for sure (that is a guess, I made it from leftovers and cost me nothing, xcept the sticky velvet). You can produce one in an evening, and even though you don't get it perfect, it will work alright.
I have been working on a "remote" to shift pages using a reflex camera shooting cable, but so far, I don't have the hardware to produce the metal attachment required and when pressing the remote shooter, the attachment yields instead of pressing the button. However, I don't care much for this gadget since I don't have a problem having my hands out of the blankets, so maybe someone else can develop the idea if interested.
But believe me, the DIY Bookchair is far better than what you show.
