When are speakers considered Hi-Fi and not Mid-Fi???

Stupid argument. Who cares what anyone says. I think it is fair to day what is garbage though. You know it when you see it. Crosley anyone?

The Best Buy haters should differentiate between ones that have a Magnolia department and ones that lump whatever stereo equipment they happen to have with the regular stuff. The Best Buys I've been to have Magnolias, and always have at least one guy who knows about 2 channel audio and a very nicely designed demo room. Maybe not turntable experts since they don't sell many of them, but they do carry them. I wouldn't want them to set one up though.  

They carry McIntosh, KEF, Rega, Rotel, B&W and maybe some other manufacturers that are financially strong companies that can afford to give Best Buy a deal on outfitting these Magnolia stores with demo equipment. 

Interestingly enough, you can usually get a better deal at a mom and pop (usually Pop) stereo store that typically has worse return policies. Except when there is a close out at Best Buy when I expect them to blow out their demo equipment.

I fully agree with @2psyop it’s all relative and a matter of your personal perspective. And keep in mind that much of what is dismissed as “mid-fi” on this and other forums produces better stereo sound than what 99% of the population has ever heard. 

It takes exposure to "quality" "properly set up" systems to be able to build a point of reference. If someone doesn't have the practice or trained ear it kind of becomes a series of judgements on top of marketing hype (or always is). 

After experience comes preference, and once you find your preference people will either agree or disagree with you. If every audiophile listened to 100 systems and rated them for 20 characteristics you'd have some people start picking apart the time of day and the power grid conditions.

There's no simple answer- Miller would argue he had hi-fi and the majority of people told him it was low-fi.    

Simple : there is no Hi-Fi without dedicated acoustic room....

Price tags means not optimal soundfield...

The only reason why people think otherwise, they had no personal experience of a room acoustically tailor made for specific speakers...I thought the same BEFORE i tune a room...

Small room acoustic obey other principle than great hall acoustic ...

Sorry, but not a useful parsing. There are speakers under $1500 a pair that would embarrass most golden ear audiophiles in blind A/B test. HiFi vs MidFi is only about price and perceived brand value. Companies make ROI decisions based on volume of sales vs unit mark up. IAG in China has been a brilliant vertically integrated force with the market-changing products they engineer and produce under the venerable British brands they purchased.