Hi worldh2ohelp,
Good day.
Though you have not mentioned, from which country you are at present - seems you are looking for a good quality life at a lower cost - after your retirement. Best wishes.
If you are looking for a good quality city life, sitting idle and enjoying; the places suitable for you seems Kolkota (erstwhile calcutta) - state of West Bengal, Pune - state of Maharashtra, Mysore and Manglore (Mangala puram) - State of Karnataka, Trivandrum - State of Kerala etc. You can have a decent life here with 500 USD, and moderate lavish life with 1000 USD. Please google for more details and pictures.
Though these places has got the facilities of city life, they are not much costlier. The climatic and other conditions are very good. Further you could find some good friends of the same age and attitude - retired persons from military, banks, government administrative services and other prestigious organisations. You can do almost all activities with English alone, but take it as a challenge and thrill to learn new languages. It may help you a lot.
These places are surrounded by many villages engaged in agriculture - the cost for food too is comparatively low. People in these places are almost friendly and fine.
But I suggest you to enjoy your retired life by engaging in some interesting activities, otherwise you may get hibernated or switched off soon.
Why not try agriculture farms, horticulture, forestry, fish farm etc. Agriculture is one of the noblest profession in the world, especially organic farming. It fetches you respect and satisfaction that you are providing jobs to the farm laborers. It brings peace to mind and reasonable profits.
You can take farm land on lease for a long period; say five or six years.
If you opt for active life the best place seems the best place that suits you is Mysore or Mangalore (Mangalapuram). Mysore is a piece of heaven with fantastic climate, royal palaces & mansions, beautiful gardens and wonderful people. It is rather a high altitude place in Deccan plateau. A suitable place for agriculture of vegetables, fruits, flowers, sugarcane, pulses and cereals.
Other place, Mangalore or Mangalapuram is on costal side with lot of hills. The climate too is good, but little hot during summer. This makes it most suitable for fish farming, tropical vegetables, water melons, muskmelons, banana, paddy, sugarcane etc.
The Karnataka state government is one of the most agri-friendly, states on India. It provides electricity totally free of cost for agri purpose. Modern methods like poly house, drip irrigation, mulching, hydroponics are commonly followed here. Assistance form government officials in this regard is laudable.
Another country with almost the same features is Srilanka. But you cannot expect this much advancement in agricultural technologies there. Not much backing from the government too. Their legal system and formalities are dens of corruption and complexity. But if you don't mind to allocate a small part of your spending for these hungry officers - it is more than OK.
Regarding your idea of getting married to a local lady, you should be careful. First of all, no younger ladies may agree to marry a much elder person (sorry, I don't have an idea of your age, and my principle is that -your age is as decided by your mind; aka if your mind is young you are always young). Only thing that might motivate young ladies to marry an elder man may be his wealth and bank balance. But there may be genuine cases like widows, divorcees, elderly virgins etc. Better you go somewhat deep about her background and history. Don't be in hurry. Think at least five times - the pros and cons in different combinations and permutations.
Further try to find some reliable good from the area you choose to settle, and seek their valuable advices.
Hope you got a general idea.
If still with no idea, there is IDEA 3G Cellular phone service - take a connection, talk a lot and empty your pocket.
Regards
Gopakumar