Stealth is still usefull in a number of roles. Because primary means for stealth detection (apart from optics, as those are weather dependent) use large apertures (either for high power*aperture or for long wavelengths), stealth still does offer some advantages, especially if coupled with otherwise capable platform (in terms of ECM/kinematics), as then it gives you an edge in engagements, for example in missile lock on probability (due to stealth, those would lock on at shorter ranges, thus increasing chance of evasive manuevers working out).
The problem here is that the improvements in electronics have led to a situation, where long wavelength radars (such as Nebo-M, Nebo-SVU and many others) allow for ARH missile guidance, as they now have sufficient accuracy for this. I could provide relevant calculations if you so desire. L-band and other high aperture*power AESA radars always had that accuracy in the first place.
Sure, Russia and NATO are unlikely to fight it out, but at the same time those counter stealth means are availiable for export and are affordable. For example beyound horizon radar set with 3000km range is priced at ~200m USD.
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Grumpy as always.
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