Whether its having all of the same art, foils, full arts, you name it, players love customizing their basic lands to fit their style
Switch was part of the original Base Set expansion back in 1999 (quite some time, huh?) but since it provides an essential ability to players, it has been featured in many, many more sets since then
#15 Compy Swarm Compy Swarms ability is very easy to trigger
I have a huge tee shirt and flannel collection
Angel's Trumpet Arena of the Ancients Bend or Break Chimeric Idol Clinging Mists Curse of Marit Lage Dread Cacodemon Falling Star Feint Joven's Ferrets Kill Switch Mana Web Master of the Wild Hunt Monsoon Nature's Will Pretender's Claim Roaring Slagwurm Shrieking Mogg Silt Crawler Spore Cloud Tectonic Instability Thundermare Timbermare War's Toll
Maybe, in the future, if Emerald gets access to reliable sources of pings in their own color, then you have the ability to run an Emerald ping deck that isn't tied to Steel