The big thing is WHY are all these boards not available for purchase and for cheap (20% mark up over cost at most)?
They were specifically built with the idea that boards would be a throw away part. Have an issue, just swap in a new board.
Nobody is going to be ready to just swap in a $400-$500 board, but more concerning is many of the boards are already unobtainable, seemingly many are still game specific/ being revised, and as they fail, many games will become bricks.
IME, some fail due to a code update. Some fail gradually over time. Some fail after not being played and suddenly with no real reason.
Concerning is the amount of failures we are seeing already and the lack of replacements at this stage.