I started Purchasing Super O in 1966 as 15 year old. I had O27 from 1956 until 1966. It took until 1976 for me to acquire the amount of Super O Track that I needed to build the layout that I desired. I was going through high school , college and the USAF during that time and not located where that track was plentiful at a reasonable price most of that time. The old Hobby Models of Evanston, Illinois helped me build that collection while attending college in Evanston
I ran Super O until from 1976 until Lionel seduced me with O72 switches in 1985 or 1987. I now regret that I left Super O for O72 which led me to Atlas O. I should have held on to my Super O as I had purchased new unused stock. The money that I have wasted in O72 and Atlas O is shameful. Because I could not get some Atlas O54 recently, I built the same layout in Super O. It is great. I just have to add some sidings and an automatic stopping feature. This track is great. It is too bad that Lionel lacked the vision to remake Super O in 2 additional radii (O54 and O72) with switches . The conductivity and working of accessories (Milk Car, Dump Car and Horse Coral Car) are great.
O72 and Atlas O are great when it comes to fit up. But there is nothing like watching FMs, Gps, F3s and small Hudsons run on Super O Track. I took 34 years to find out that the grass was not greener. I will admit that I enjoyed operating on O72. Atlas O always possessed major voltage drop problems. Long live Super O track. BTW, I never had roller groove problems between 1976 and 1985. One day I will post an operating video.