I don't think he's talking about making & selling speakers, Tex-amp, just DIY'ing his own. Obviously not everyone has the skills, knowledge or inclination to build their own but there are some very very fine DIY efforts out there.
I don't want to criticize the Outlaw speakers without hearing them, but at first blush they don't look like all that great a value. I too would be very surprised if they sounded better than similarly priced two-ways from Monitor Audio, Onix, Axiom, Von Schweikert, etc. The $1,ooo two-way bookshelf segment is already pretty crowded; you better have a pretty special model if you're going to distinguish yourself in that company.