This is somewhat true but a side effect of PV is that its performance degrades with higher temperatures. It is possible to use panels output as thermometers they are so consistent in this behavior.
I'm not saying they will stop working but merely they lose out in some potential.
I built it (circa 1996) on HP PA-RISC workstations, like HP-715's. There was no assembly code for those, just portable C. The frame rate wasn't great, but it played.
Both Quake 1 and Quake 2 ran fine on my Pentium MMX (and i guess regular Pentium since they didn't use the MMX stuff) using the software rasterizer and Quake 3 also ran fine on my Pentium 2 with a GeForce 2.
I'm not saying they will stop working but merely they lose out in some potential.