Some are good enough to put under "guilty pleasure" or make you think "if only the author used that talent for original work" at least. Better than certain published authors as well, hell some published authors have admitted to writing fanfics under pseudonyms as practice or for leisure.
Besides, haven't you ever wanted more of a certain story or series after it already ended? Or wanted something about it fixed? Fanfic fills that hole for me. As long as you avoid certain irredeemably tainted fandoms like Sonic or Naruto you'll have skipped at least two-thirds of the trash out there.
Post edited on 12th Feb 2013, 1:06pm