Buying or even pirating literally thousands of albums just wouldn't be feasible for me. Way too much cost, effort, and time. Spotify is well worth it for me as a consumer.

i listen to too much music to be shuffling around CDs while driving

Not all artist release songs on albums or the albums were limited release and are hard to find, but spotify has them.

I buy the the digital release to support the band and just keep listening on Spotify. At that point the band won't get more money out of me for the songs and I get the covience of Spotify