Wow, this is a very "interesting" read from every opinion direction. I appreciated the "technical" discussion on induction versus flame. Really good detail on each process. I worked my last 35 years of my career for 2 global companies that had a "Speak with data" mantra which included cost benefit analysis.
My take is induction is "better" than flame not that flame doesn't work at all. This "discussion" is similar to that you "have" to use temperature stable powders to shoot consistently. How did we shoot all those years without them? Why do load manuals include non temp stable powders?
If you have the need to grab every 0.01 MOA at 1K and the means to purchase an induction annealer, go for it. If you still use flame, focus on improving your process for better consistency. Annealing is not a race to finish as quickly as you can. We are painstakingly deliberate in our reloading process and we need to be same on annealing. I got better at flame when I "slowed" down and focused on my process for end result on brass. This is where induction wins hands down but if you approach flame with mindset you can improve your results.
I do not shoot "enough" at LR to justify the cost benefit for the (slight, minimal, better) improvement IMO. Is induction better, of course, but doesn't mean flame does not work. I have other technical areas I need to get better bang for the buck.
I do hope we can keep having these technical discussions because there are so many ways to "skin a cat" and present many if us opportunities to learn and improve our knowledge.