I did want to follow up on this.
I ended up buying one of these in brown:
https://www.ebay.com/itm/4-Colour-Fa...1/122690561261
While there are none listed now, the seller may have some available, just ask. I was able to get the brown one while he only had purple left in stock.
My original case was the same but in black, and while it eventually came apart (the 'leather' flaked off over time), it doesn't owe me anything.
The brown one I just bought was $7.45 + $.99 shipping from China... I used an eBay coupon to get $5 off. $3.44 is really cheap.
The stitching is crooked making the reader sit a bit lopsided in the frame unless you move it around a bit. My original one did not have that issue. The seller was quite helpful with a few issues I had and worked quickly to resolve them.
If you're looking for inexpensive, and not cardboard looking, it was definitely worth the price. I also love that you can fold the cover back and put your hand in the strap for serious one handed control.
Edit: Avoid these cases. While I paid little for them, that's what they're worth. The 'leather' cracks quickly and it doesn't take long before these things look awful.