In the 1970's, you could walk into a Tech Hifi in NYC and get a top performing system of the day for a reasonable premium.
Since then, high end audio has become more of a niche/boutique industry. Today, you might well pay a huge premium in a big city audio shop for a rig that may not even sound as good as what you might put together as a smart thrifty shopper on the internet for a small fraction of the cost. It could be a huge discrepancy if one uses component cost alone as their main indicator of performance. Or one might find a good value still if smart and working with a dealer that has a range of customers best interests in mind, not just those of the ultra wealthy Wall Street types. IT can be a slippery slope for the uninitiated though. Retail price is clear as day. Most other things that really matter tend to be more nebulous. The financial stakes can be quite huge!