But, in my opinion, "journalists" who claim to cover things objectively should not accept anything of value from the people they cover. It is a issue of journalistic ethics.
I am used to dealing with political reporters, and I know "industry journalism" is different. But think about it. Automotive magazines review the products of manufacturers that provide their advertising revenues, creating an inherent ethical dilemma. But if a company gives an item to a journalist that can be sold for a substantial amount (and I know this hasnt sold yet), it might as well be the same thing as handing them a wad of cash. That, to me, is blatantly unethical.