You shouldn't need a $50,000 system to detect the difference between Dolby Digital and a lossless codec. If you did, its all the more reason for the record companies to not bother issuing a lossless codec. If surround listeners represent a minor niche in the overall market, imagine how small a niche high end surround must be? So why should they bother even considering the wants and needs of those who listen to surround AND have a $50k+ system to play it back on?
Speaking for myself, I can hear the difference between DD and lossless on my relatively modest system, so I have no issue with the DD complainers. The issue I do have is with the hyperbole and exaggeration inherent in descriptive phrases used to describe the difference like "night and day", "unbelievable", "blows away", "no comparison" "revelation", and countless others. To me the difference is there, but its not overwhelming and it certainly isn't enough to ruin my appreciation for a well mixed release. A high end fanatic will tell me that is because my system just cant resolve things as well as a more costly system would? To that I say BS.
I think it speaks to two issues: The difference seems larger to a small segment of the population because they are more sensitive to it than I am, and/or, the more cash you put into a system the more you want to hear an exaggerated difference.
My guess is, for every person out there who claims to hear a "night and day" difference between DD and lossless, there are probably 1000 others who will say they hear no difference at all. So if you were a record company, who would you cater to? :couch