And I think that pretty much gives away the reason lock cards arent treated as just another answer by the player base
Ley Druid + Juniper Order Druid + Blossom Dryad The trifecta of Ley Druid, Juniper Order Druid, and Blossom Dryad are effectively the same card: a begrudgingly playable ramp spell
People made Phyrexian Dreadnaught work
Amorphage Greed EARTH 4 3 [ Dragon / Pendulum / Effect ] [ Pendulum Effect ] While you control an "Amorphage" monster, neither player can activate Trap Cards or their effects, except for "Amorphage" cards
So how do you get your cards graded and more importantly how do you send them in correctly so they aren't lost, damaged, or incorrectly evaluated
Now, it carries a price tag of 220,000 JPY (~US$1,500), meaning that its price has doubled from an already exceptionally high baseline price in a little over a week