I never said it was NOT worth it. I said most likely, it wasn't. And it probably isn't in my opinion.
There are some good sellers on Fiverr and some deals are good. But the majority of the "link wheels", "blog comments" etc are all spammed to death and are all useless. Some things are too good to be true, and on Fiverr, there are a load of these things.
Some good things to outsource on Fiverr would be social media backlinks, blog comments etc.
Bad things are Web 2.0 link wheels, manual high PR blog comments and so on.