We've decided we want to run some internal fences to help make setting up paddocks go faster. We currently have four foot high fiberglass posts, and cows seem happy to jump over those. We're currently contemplating 6 foot posts. Now the question is: steel or fiberglass. The local farm store has the 6 foot steel posts for $2.75 (on sale now!) Searching the internet, I can find 6 foot fiberglass posts for $1.75 (plus shipping). I'm currently thinking that fiberglass would be the way to go. But I've made some dumb decisions before and it always seems wise to check here before making a big purchase. What do you guys think?