Tok20000, please do not take my earlier post as a personal indictment against you. It was not my intention to question your integrity and if I have done so, then I sincerely apologize.
However, the situation you described does raise ethical issues. Let's say the cables you were offered sold for $1,000 MSRP and that after your review you could have acquired them at a 50% discount. In effect, the distributor has given you $500 of monetary consideration for your efforts. That's why I would use the term "paid endorsement". I used to think that one of the most powerful comments a reviewer can make about a product is that they purchased the review sample. I guess I should now take such comments with a grain of salt.
However, the situation you described does raise ethical issues. Let's say the cables you were offered sold for $1,000 MSRP and that after your review you could have acquired them at a 50% discount. In effect, the distributor has given you $500 of monetary consideration for your efforts. That's why I would use the term "paid endorsement". I used to think that one of the most powerful comments a reviewer can make about a product is that they purchased the review sample. I guess I should now take such comments with a grain of salt.