Your first step back to sanity dictates that you do not buy the 28/1.8G or the likes of it. Sane photographers in democratic countries ruled by unoppressive (? expressive) regimes are still happily blessed with their 24/1.4G s and 35/1.4G s together with their pro bodies. Good for you! That leaves room for the rest to get hold of what are quite suitable in capturing exotic expressionism in post-industrialised museums.