A quick scout about on ebay showed me that 1:24 or 1:32 modern jets are like rocking horse poo. The most modern I could see is an F-16, other than that it's back to the '70s with a Harrier GR.1, Hawk or Alpha Jet.
From my model making youth days this has always been the case, 1:72 is the most prominent scale followed by 1:48 and then down to 1:144. Nothing else ever used to be catered for, and that still seems the way.
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