What Plus said.
For example, in Joplin, Missouri, Tesla opened up a V3 Supercharger with eight stations about six-eight months ago. The original V2 Supercharger at a boarded-up weed-infested former convention center was taken out of service almost immediately. I don't know if Tesla has removed all the V2 hardware or not from this original location.
At Mt. Shasta City, Tesla installed 16 new stalls across the street from the original 4-stall set up at the Best Western motel. Those four stalls are still putting out electrons. Similarly, Tesla added 24 V3 stalls at Beaver, Utah, to augment the original four, then eight V2 stalls. Those locations are separated by parking stalls.
Plus has done a lot more sampling of Superchargers across North America (and Europe too!) so he would have a better grasp on which locations were eliminated and which remained when expansion occurred just a few short steps away.