it's like asking: do you still need to buy records and record player?
well stampered records are so expensive nowadays. so i continue to buy cds, this, regardless of being remastered. better records store, a self acclaimed genius of hot stampers, prefers cds than lousy pressed and 180-200g lps.
the beatles corp. continue to produce cds (and lps) of unreleased tracks. and so are the other artists.
dont worry, cdps and cds are just fine. they'll stay for a long time. even in this year of 2017.