Imagine someone whose unfamiliar with the band, who decides to check them out after seeing them in Kerrang! a few times. They're then introduced to this amazing collection of music that we all know and love, they eagerly await new music, they go to the concerts, they meet someone who also likes the band, make friends, etc. They have a new soundtrack to get them through the bad times and to play along with the good times.
That alone makes it worth it.