I herd the same about the ring..I just cant get if you are putting 500,000.00 a day in cash away for years.And i am sure it was more .What do these guys do with cash....Not just him but thousands just like him. I still have the same thousands in a pvc tube for 30 years , and i cut it open like each ten years to see what the money does . And it stays fine under ground .so i do more and more. I use schedule 80 it costs more but it works glue the ends up real good...put them 8" down mow the field no problem