Whoaa this is also news to me.
I wonder how much of this is due to carpeting falling out of favor with homeowners/home builders. Rug Doctor must have been hurting and a reduction in carpet sales would make sense.
The Bissel Big Green was also a massive improvement over the old RD machines. I remember witnessing grocery stores move over to carrying Bissells instead of RD slowly as the market changed. I wonder which models they'll keep in production long term.