I know different people place different values on things, but while there are advantages of larger photosites etc, for me I've not found the dynamic range or high ISO performance lacking on any modern camera for some while now, so while one might be 1,2,3 stops better ( I really have no idea because I've not needed to look), it's not something that limited me for years now. Sure if I go back to my original digital camera (Casio QV10a), then I can see a change, but pretty much since my first Canon digitals 20 years ago (god I had to check that!) I've never felt limited and for sure over recent generations the improvements are somewhat more incremental rather than revolutionary.