I sold 2 MTH Rev L TIUs and a WiFi last year for a surprising amount of money. I then bought a MTH DCS Commander for $150 to run the 1 scale MTH engine we have and put in an order for the $350 TIU/WiFi unit yet to be produced. Could have ordered a 2nd and still been ahead on the sale. I'm all in on using an app v remote so the decision was easy. I had the TIUs because we have a dozen Rail King engines but are slowly selling those off as we move to scale using mostly Atlas and Lionel engines. We have Cab2 to run both Legacy and TMCC. The Lionel system is so easy to set up with the 1 wire connection and it works great. The DCS Commander is very different from the full TIU, but it bridges the gap until the new TIU is produced. Fully aware that even the end of year projection might not be realistic, still, I can wait. And if it never comes, that 1 scale engine becomes conventional. It's a different story if your collection is built on MTH, but otherwise, there's gold in them there TIUs...at least for now.