You need to find out if the HD version is native or not. Given the age of the album, I assume it was recorded on tape. Normally, high-res digital transfers are remasters done off of the original source. If that is the case, than a 192/24 transfer will sound markedly better than a redbook CD -- assuming that the playback equipment can show the improvement (it must be very good).
Have purchased a number of high def items from HDTracks and, mostly, been disappointed. Find that if you resample a CD in a media engine such as JRiver to 192/24 with their utility SoX the improvement in downsample play is surprisingly good. The improvement is largely in noise reduction and bit rate. Try this before you dismiss it as illogical.