This is called a Curve. If players don't have their card costs curved, it can make it difficult to keep up with opponents
On the other hand, booster packs work very differently
Clear Wing Synchro Dragon X WIND Level 7 [ Dragon / SynchroEffect ] ATK 2500 DEF 2000 1 Tuner + 1+ non-Tuner monsters Once per turn, when another Level 5 or higher monster activates its effect on the field (Quick Effect): You can negate the activation, and if you do, destroy it
I have had several games where I know what I am going to draw as I have ordered the bottom of my library with things like scry, Bow of Nylea, Dig Through Time etc and not hit a shuffle effect
And once you hold a Japanese card feel the card stock, see the print quality, discover artwork that simply doesnt exist in English youll understand exactly why collectors keep coming back
The differences between Commander and Standard are vast with very different requirements for construction of the decks and attitudes of the players