I think you're missing the point of "webcomics"
It's like strips in a newspaper, or a chapter from something in a magazine of some sort... Except, it's on the internet... Much of it is also made digitally, and aren't distributed for physical reading material or even for sale to begin with, completely free stuff that some bored/motivated person, or group of persons, thought they'd share with rest of the people over the internet, without the use of selling it, and probably not get known very well other than locally, unlike the internet which goes worldwide...
Many of the above examples seem very vague too imo, to put in a book that is for sale somewhere... I'd in fact rather have read those things on the internet...
Stories like Dr.McNinja though, i'd love to see that stuff on in actual comic-book form... and i actually think it
is available in that format... It's self distributed though, i believe... and i'm sure this effort was caused by the publicity it got from the many visitors from the internet...
So i certainly don't find it so lame at all, i think it's a great oppurtunity to show off, try things and show it to a wide global audience, and probably even get somewhere with it...
And then i end this rant here with a smiley, to wipe off the serious facial expressions that this whole post might have caused