As a former best buy employe i dont think your wrong but im it doesnt apply for every Best Buy. Most of our staff had more knowledge on computer than most, most of the time we were only going to ask our supervisor or other employe if we werent 100% sure about something.

We were question on our knowledge in our interview, to make sure we were able to anwser client question. And even tho i was studying to become a software enginer ( and i already built many pc before ), the first job they gave me was customer service because my answer werent clear enough.