I'm not disagreeing, but
I'm also not the one wanting to "Bring back DOS".
1. I wasn't speaking from a business viewpoint. It appeared ka1cft and jdclyde were expressing personal preferences in hardware and software. There's no -technological- reason you can't still run the way they say they want. Incidentally, I'm told you can buy a new machine with the license for a current OS and still legally install an older version, although I've never had reason to confirm this.
2. Enlighten me. Is this educated speculation or have you seen evidence of this potential marketing strategy?