Are really expensive advance trainers worth it? I look at the United States Air Force and the Air Forces of Israel, France and a few others and most don’t have that “high end” super advance trainer like the T-50 and the Aermacchi M-346 to name a few. England has the Hawk which is rated very well but most of the larger air forces of the world don’t. South Korea building an interesting trainer and did approved plans to acquire approximately 100 T-50s, half in the standard configuration and half in a Lead-In Fighter Trainer (LIFT) version called the A-50. The U.S. Air Force has decided to upgrade its more than 500 Northrop T-38s rather than acquire a new advanced trainer. They seem to be alright without investing in a mini fighter for a trainer. I call it a mini fighter because if the T-50 could carry a little more fuel South Korean F-16 pilots would start to lose flying time. Russia going with the Yak-130 its capabilities is a little unknown but I believe a few have been produced and are in the testing stages. China going with an L-15 but has other trainers as well so it’s difficult to tell if the L-15 will be there overall advance trainer. Is there truly a market for these $15/20+ million per trainer aircraft when aircraft like FC-1, A/B Vipers, etc that have more capabilities as far as range, speed, and payload run for about the same price? Could these advance trainers carry enough fuel or have a capable enough radar fit inside there smaller frames to be useful in the light attack or COIN role? Would it be worth while for smaller air forces who still use F-5, Kfir, Mig-21, Mig-27, Mig-23, A-4,J-7, F-1C, AMX, Mirage V/50, maybe older F-16 that haven’t been upgrade yet, or other similar fighters to go with for example a modern brand new T-50? I realized that some of the aircraft I listed above carry larger payloads and are Mach 2 fighters my point being would it be worth it changing over to a very modern platform be worth it.