Pensioners can rest assured they can live comfortably and laugh off many consumptive expenses in Panama because they are not expensive at all ($10 for a day at a spa).
 After one applies for residency (easy) and is on the pensionado plan, these are some of the perks that one can access.
  • 50% off entertainment like movies, museums, concerts, and sporting events
  • 30% off bus, boat, and train fares
  • 25% off airline tickets
  • 50% off hotel stays (30% on weekends)
  • 20% off restaurant meals
  • 15% off hospital bills
  • 10% off prescription medicines
  • 20% off doctor visits
  • 15% off dental and eye exams
  • 20% off professional services
  • 50% closing costs for home loans
  • 25% off your electricity bill
Also, here are some benefits of living in Panama.
  • Close to the U.S. (just a 2 ½ hour flight from Miami )
  • Political stability and very low crime rates
  • Excellent weather, with a climate for everyone, from tropical beaches to temperate mountains
  • Top-quality health care—the gleaming new Punta Pacifica Hospital is the only Latin American facility affiliated with Baltimore's renowned Johns Hopkins Hospital
  • No income taxes on foreign-earned income

Here are some aspects of Panama that you might not know:
  • You can drink the tap water
  • No property taxes on homes or condos constructed in the last 20 years
  • The U.S. dollar is the official currency
  • A built-in community of English-speaking locals and expats
  • No hurricanes...ever
  • The world's best retirement incentive program, and...
  • It's affordable, affordable, affordable—live well on as little as $979 a month! 
Add all this with the weather, the local hospitality and of course the adventure of living in a foreign country and Panama can be the paradise you have always been looking for in your life.

Information is from many sites - Panama gov't websites and International Living's website.