Russ writes:

In April 2003, sawstop filed a petition with the Consumer Product
Safety Commission to make SawStop-like technology standard on all
table saws.
If adopted by the CPSC, this ruling would carry the weight of law, and
make illegal the sale or manufacture of any new table saws without
this patented technology.

And if this happened, the cheapest table saw you could buy might sell
for about $2500.