For those that are complaining, as someone who has been playing Yugioh for a decade, I gotta say you guys are stupid.
If you think I don't know what I'm talking about, let's look at my nine decks and one I used to use.
A Crystal Beast Deck with no extra deck and a good winning streak.
A Cloundian deck with no extra deck and great defense.
A Venom Deck with no extra deck that wins 9/10 duels, and none of them involved the instant win effect.
A Destiny Board deck with no extra deck that, while not as good, is functional.
A Neos Wiseman deck with one fusion card for Prisma's effect that is... okay.
A deck based on the old "Rise of the Dragon Lords" structure deck that, while having 1 Fusion and 1 XYZ monster, rarely uses them and can still kick some ass.
A Skull Servant deck that, while having 2 Rank 1 XYZ monsters, rarely uses them and is fairly decent.
An Alien Deck and a Madolche deck that... admittedly don't help my arguement.
And finally, a Darkworld deck based of that of the guy who taught me how to play in the first place. No extra deck and, while formulaic, always won.
In conclusion, if you want to play like in the old days, PLAY LIKE IN THE OLD DAYS! It hasn't stopped me. Why should it stop you?