Mu Young Lee wrote in
cc.itd.umich.edu:

Practicing your casting is
probably the best and most enjoyable way to get some extra distance
rahter than discarding a perfectly good line in order to have the
latest ultra-slick superline on your reel.


I'd add that as you become more experienced (practiced) you hit the ground
less on the backcast, are less likely to snag a cast in a tree and false
cast unnecessarily - all of which contribite to line wear.

Steve