I'm still amazed that as reputed institute as Washington Post where shapes opinion of millions of people could be bought out at 1/4th of the price of Instagram.

The Huffington Post does not have pension obligations, and it doesn't pay its reporters six-figure salaries and benefits. (Well, not most of them, anyway.)

It doesn't do the same investigative reporting either.

They're completely different businesses. Huffington Post is a cross between a content farm, a bad women's magazine, and Daily Kos. The Washington Post is a newspaper.

I'm curious if Huffington could get the same price today.

Seems like he thought that the price was right for a publication with such a strong legacy, even if he doesn't have a grand plan for the immediate future. This sale was only offered to a very narrow pool of buyers, so I think that it was a very prudent purchase. He is friends with the previous ownership and undoubtedly felt that if he can preserve the publication in some shape or form, there is nothing but upside given the "drop in the bucket" price.

How long has Huffington Post been around?

The Washington Post seems to have an incredible reputation (especially if they really did break the Pentagon Papers and others) and be a fun purchase if you have f-you money.