Oh and Best Buy owes its survival to investing heavily into cell phone plans and contracts. They would’ve folded without it.

Radio Shack limped along for maybe a decade after their core business stopped making sense, because of their cell phone deals. This Onion article from 2007 captures the cultural place that RadioShack operated in at the time, and they didn’t file bankruptcy until 2015 (and then reorganized and filed bankruptcy again in 2017).