Honestly, how many of you would checked to see which decks performed best, Rastafla and others seem to have put in more effort than others (besides his group of 4 or 5 people)
I bet many of you did (cough I wouldn't have, but that's just me), but it didn't matter because most of you didn't have the upped cards to use them.
Especially in upped tourneys, you see the same people winning over and over again, because there is simply less competition due to unupped < upped (for the most part upped decks will win) and many people don't have the cards to do it
Luck is definitely a deciding factor, but so is skill.