Just retired this December after 20 yrs in Shanghai - my business has declined over the past 3-4 years and was not worth continuing with all the hassle just to break-even.I thought you were a pissed up expat working in Shanghai!
What made you choose Shanghai to retire in, of all places...? family?
Wife of 30 yrs is Chinese and she's close to family and all her friends here, so if she's happy then that makes life easier all round !
For me I can live anywhere if I have a camera and a computer, nowhere is too far to travel from here and some cracking locations are close by (Japan, Thailand, Nepal etc) 😀