Paying the full movement cost, especially on a lot of the more powerful locations, is just way too big of a tempo loss
Many of the original base keywords are "evergreen" and still used commonly in Magic design as of 2019, such as Flying, First Strike, and Trample
To play multiplayer formats like Commander, many people I know are flocking to Magic Online to play on there with some form of voice chat running in the background with friends
1Talisman of Unity
Most of the cards here, new or reprinted, support this idea in some way
Landing this Squirrel Hero alongside Nuka-Cola Vending Machine and Krark-Clan Ironworks, for example, sets you up to generate infinite colorless mana and infinite tapped Treasure tokens