I was thinking that model upgrades have a smaller profit potential because there is a possibility of a consumer switching to the newer model. You think that effect, if it is present, is not worth thinking about?
I look at a lot of things, and like I said I don't just do discontinued items.
Right now I'm holding onto some Samsung Blu-ray players from 2015. Samsung stopped making them, so the 2017 models are the latest, but the 2015 are cheaper and still selling quite well. I expect the price to go up a bit as the other guys selling it sell out, and then I'll make maybe 30-40% on my money for holding it for 4 months or so, minus costs/returns.
Very doable if you have capital and are willing to be active and take some risks.