I had some bad experiences at several dealers in my younger years - 25 plus years ago. My former neighbor owned a stereo shop for 40 plus years. One day while chatting on his patio he explained his entire business model. His product offerings were influenced by what other dealers were selling, plus what profit margin he could leverage from a given product line, and finally the quality of dealer/customer support provided by said company. After all it is a business above all else. So, I realized the advice and products I was getting from any dealer is most likely not unbiased or in my best interest.
So, I stopped going to dealers and focused my questions, research, sales, and purchases to the internet. It forced me to do more research on my own and as a result have acquired more knowledge. Finally, I've become good friends with several audio nuts (through transactions) which is priceless