At the end of the day reviewers write not what they think but what the manufacturers and magazine editors want to hear. Write a review where they say something is a waste of money or a load of rubbish, never happens simply because the reviewer wants to keep his job, and the advertisers, want to keep there magazine editors happy. And lets face it advertising is the life blood of any magazine or business. So they ramble on, and most get paid for the number of words printed. So white a long winded review, full of useless information, two or three pages about your latest accession of a jug lead, with a high performance plug, and your not only in the money you also keep your job.
As for You-Tube and similar internet programs. The magic word is SUBSCRIBE, In short if you write what people like to hear then there subscriber cash will keep rolling in, regardless of what's reviewed. So you have a couple of thousand subscribers who all pay a couple of dollars a month, and there in the money as long as they keep writing what there subscribers want to hear.. It's a bit like a licence to print money.