You can make many inexpensive loudspeakers sound great if you know what you are doing and have the tools. Most Audiophiles would rather juggle cables and tubes then get down to the reality of the situation which means spending money on measurement tools, digital signal processing and room management so you can fix the problems.
Most audiophiles have no idea what they are listening to. How many of you know exactly what the frequency response of each channel of your system in your room is? What does flat sound like? Audio Systems need to be calibrated just like video projectors if you want to see what the director saw or hear what the recording engineer heard.