void DemoCode()
{
var t = new Coin();
int totalInstancesAvailable = t.AvailableStoreInstances;
int nextUnpurchased = t.GetNextLowestUnpurchasedInstance();
int totalInstancesPurchasedSoFar = t.GetTotalPurchased();
bool userPurchasedAllInstances = t.IsAllPurchased();
bool isThirtySecondInstancePurchased = t.IsInstancePurchased(32);
}