I’ve attempted to shop at Best Buy over the past 30 years or so.
The problem is, no matter which era, none of the staff seemed to even understand my questions, let alone be able to answer them — this isn’t just electronics, but on ANYTHING in the store. “Does that washing machine have a direct drive or belt drive?” “What’s the theoretical maximum power of that amplifier?” “What are the manufacturing tolerances of that Monster cable you say is so much better than bulk electrical wire I can get at Lowe’s?”
I mean, even the Geek Squad guys just read the details off the packaging or off their reference document; no actual thought ever went into trying to help me solve an issue that would result in a purchase.
In the early 00s I made a fair bit of money as a side hustle fixing stuff that the Geek Squad had messed up.