Rafr, for your information, I was born in Columbia, graduated from USC and lived in Columbia for a total of 52 years so I do think that I do know something about what I am talking about concerning Audio shops.in the Columbia area. I have been in the audio hobby for 50 years. I lived in Southern California for 17 years and have been to Audio Shops in San Diego , Los Angeles and San Francisco so I have seen some of the best Audio shops in the US. I have been in every Audio shop in Columbia that I was ever familiar with on many occasions and I stick by my original post. This is merely my opinion in answer to the OP.
Violin