For start off the cheaper one cuts out now and then. Then my LCD displays a black screen with "No input signal" the deluxe one didn't. The Picture is clearer with it. The audio before I had to turn my tv up to hear it, good sound but quiet. Deluxe sounded louder and great.
Like I mentioned it might just be a difference in those two made by same people. It might be the insulation on the cable that helps too as it seems better insulated which will stop interference from other cables and EM sources.
Could be the cable is a little sorter as the longer the cable the worse the signal sometimes.
I don't know. I'm not an expert on the cables but the article you posting is saying the £100+ are no different. However I'm saying I owned BOTH the £10 and the £20 one and there is difference. But it could just be that the £10 they made were crap quality I don't know. I'm just saying what I noticed.
You seem to think I'm talking about £100+ ones been better I'm not. But really really cheap ones seem to be worse than you regular £20 price range ones.