http://www.theoptimist.site/riccartons-synthetic-track-debate-heats-up-as-roadshow-heads-south/
So Tim says " The annual cost of maintaining a Polytrack is dependent upon staff, equipment, the base, weather conditions and the amount of usage and the requirement of renovation, and is likely to be different for each track. I have seen documentation detailing annual costs of $1.56 million for maintenance of the Polytrack at the Singapore Jockey Club"
And then he says"“If it’s costing $5,000 a week, which is $250,000 a year, there is no way we can run it. Our information is it will cost between $55,000 and $65,000 a year to maintain, and if you look at what we pay to maintain grass tracks, the plough and sand tracks, it’s not in excess of that figure."
But they obviously have no idea. I'd say it can't be a goer and it seems that most SI trainers do not support it.