a new turf field costs right at $1,000,000 now. They will tell you up front not to expect more than a 10 year life cycle out of it. So, you'd have to spend $100,000 a year on a natural turf field to justify the cost. and that is at today's cost. 10 years from now, a new turf field could cost $1.25 MM or more, given inflation over that ten year span. so really, a natural turf field would have to cost you $125,000 a year to justify the cost of a turf field. if you're doing it purely on a cost basis.