They included Vanguard of Brimaz (Born of the Gods, 2014), Eternal Dominion (Saviors of Kamigawa, 2005), Pegasus Stampede (Tempest Remastered, 2015), Oubliette (Double Masters, 2020), Man-o-War (Modern Horizons, 2019), Brothers Yamazaki (Champions of Kamigawa, 2004), and Brain Freeze (Vintage Masters, 2014)
Which meant "last in, first out" was not yet a thing
While it has always been a part of the game, the collectibility of Magic: The Gathering is front and center nowadays
Retailers are not the bottleneck
At the same time I have sink time and money into grading which is another cost that eats into the thin margins. Maybe this is my own personal experience but I feel like a lot of people will have the same experience as I do