Saw this online --- I think it's from one of the turf sellers.
Just remember -- synthetic turf isn't permanent. Seguin HS replaced their field a year or two ago after about 10-12 years. If you buy one of those fancy colored turfs (ala Boise State), expect them to fade. One of the nearby schools put in a red turf field. It's gonna look awfully funny when it fades to pink.
You're probably close to $500,000 for a turf field. Years ago, I remember getting a post card from a turf seller with a special offer -- buy and install a field (somewhere around $600,000) and get 1000 free football jersys.