That sounds a bit too harsh as not everyone gets to that figure. As you mention there are many abusers out there with low traffic websites asking friends, parents, neighbours and even pets to have a click every so often. In that way, they might earn an extra undeserved $$ per day, which they use to treat themselves a meal once a week. At the same time they are wasting other people's money which is very wrong, but also damage the reputation of Adsense and YPN as reliable means of advertising - which is what this thread is all about.
On the other hand, you have a few 1000s of webmasters that they do not abuse PPC to their advantage and try to put on an honest web presence. For non-abusive starters like them, PPC will usually cover the domain name and hosting costs so they can keep going. According to the 1000-visitor-per-day principle, they wouldn't stand a chance as in most cases it takes a long time for a new website to reach the 1000 visitor per day figure (and some of them never will). What about them?