It is amazing how fast these things change. Less than a decade ago when asked about ads and sustainability, the folks at Justin tv said the cost per stream viewer isn’t very high and one ad every hour more than covers all costs. Granted this was before high definition high frame rate became the norm but still...

less than a decade ago I was making almost half as much money per month as I make now and it was totally ok, now I can barely get by on what I'm making, where there may not be inflation of the economy there may still be inflation of our wants - not to say that is the complete reason for the increase of ads, only a contributing factor.