private void BuyItem(Action <double> buyAction, double price)
{
Console.WriteLine("How many would you like to buy?");
double amount = Validation.ReadDoubleLine();
if (Inventory.CanBuy(amount * price))
{
buyAction.Invoke(amount);
Console.WriteLine($"You have ${Inventory.Balance} left.");
}
else
{
Console.WriteLine("Sorry, you're broke as a joke.");
}
}