Nunya, it is painfully obvious that you are not aware of how advertising works, and the different outlets.
The case of the ultimaker video is this: Linus can be treated as more of a celebrity than a journalist, though he is both. Just merely having the product in the background or if he tweeted about it a couple times, could be considered a success for Ultimaker. It's similar to how Smart Water became successful.
It all boils down to LMG having close to 2 million subscribed viewers, and it cost Ultimaker less than $4,000 to reach that many (somewhat) targeted unique impressions. Not a bad deal.
