I like the cyber deck in theory but a project I've always wanted to take on that I felt would yield more value is to restore and upgrade an old ruggedized laptop.
I planned a project to restore an old getec v110 gen3 from eBay. They are often sold there with no hard drive or extra batteries but best part is most of the hardware is backwards compatible. Seemed like a ~$500 project.
I then found a new gen6 model on eBay for $1400 so I just got that instead. (Some pawn shop massively undervalued it)