A wireless router is solid state technology. In my case, a wireless router:
- Has no moving parts.
- Does not contain a battery that will degrade chemically over time (AFAIK).
- Has no consumable parts.
- Is kept in a room temperature environment (in my case, a closet).
- Is not subjected to any wear and tear.
- Is not moved, struck, or jostled.
- Is designed for a goal of 100 percent uptime.

To me, "reliable" for a piece of solid state electronics like that, would mean that it does not fail, ever, after any number of years, unless acted upon by outside forces.

I understand that the value proposition of a $50-100 router lasting three years is not a bad value proposition. I'm trying to find out what I have to pay for 100 percent reliability. More importantly, how to find out if such reliability statistics even exist.