I'd support Blu-ray releases of albums if they became more popular and bands I actually listen to started releasing on it. I still like to buy CDs simply so I can have the physical copy... and because it allows me to easily rip my music, but honestly, I'd switch from CDs to downloads if they offered high-res lossless multichannel versions of releases. Buying downloadable tracks at less-than-CD-quality always feels like a step backward to me, and even buying CD-quality FLAC makes me wish I was getting a physical copy since I'm usually spending the same amount that I'd spend on an actual disc that I could then rip as FLAC.
