The webapp market is limited by people's leisure time. There can't be 10 Facebooks, because if the average person spends 30 min per day on Facebook, then it would have to spend 4h30min on the other 9 webapps. Nobody has that much time. The market for electronics, photonics is almost unlimited... because these technologies are meant to automate, not to entertain. This is not a matter of electronics being "nobler" than webapps, it's just the realization that one encounters certain limitations in the webapp area that do not exist elsewhere.
FWIW, Tarsnap is both b2b and b2c. My best guess from eyeballing email addresses and talking to some Tarsnap users is that businesses are only 20% of Tarsnap users,
although they account for about 80% of the total usage.
The way tarsnap is marketed I'd never ever expected it to be b2c, most private individuals I know outside of computing would have a very hard time understanding what it's all about without a lot of explanation. That's really interesting.
Ah right, of course, why didn't I think of that angle. That should have been obvious. To my defence I'll say I wrote that before my morning tea while on a holiday. Will try harder next time.
