Blow my eardrums out? Don't understand that comment! The high definition studio master albums that I have downloaded are mostly from Linn Records and other sources, some from HDTracks, typically they require a 10db increase in volume, to volume match with my other flac files of the same material. Mastering doesn't get much better than studio masters. I use EAC to rip CD's to flac, so I don't think 320 lossy files can be better. You must be using portable gears if yo don't hear a difference. My gears are listed in my sig, and A/B using the studio master vs ripped flac, with the same albums, to my ears don't compare. If I sample a good album from Linn Records, and like the sound, I prefer to download the studio master flac for the best quality. You hear the hi res files way different than these ears! If I had a choice and the means to get the studio masters in hi res, for the few dollars more, that would be all that I purchase, they are that good! I won't argue with your 320 mp3's if they make you happy. But, many artists absolutly hate MP3 copies of their work.....I am speaking of someone like Neil Young who rarely even put their best music on CD. I have many of his albums that are 24/96 DVDAudio, great quality. Many here don't have the gears to play back 24/96 files, with cheap drive space, no reason not to have hires!
When you finish reading that, do yourself a favor. Download this free trial of dbpoweramp, and convert a few flac files to 320 MP3 via LAME. Then let me know what you think.
No one else can convince you unless you have the epiphany for yourself. Make sure you convert your own lossless files to MP3 320, and compare that exact MP3 to the EXACT lossless file you converted it from.