My parents are retired and live in Lakeway and they love it. They have great golfing, medical facilities nearby, loads of shopping options. They are out of the hustle and bustle of Austin proper, but still close enough to drive in to see a play or visit grandchildren. Most of the homes were built in the last 20 years so there is not too much work to be done besides the occasional update. There is a very active Seniors community in Lakeway they have; book clubs, finance clubs, ladies groups, sewing clubs, boating clubs, tennis clubs, etc.... You will find plenty of activities to keep you busy and entertained. Please let me know if I can help!
Until recently I owned a Resort Marketing Firm (since 1977) . The Horseshoe Bay Marble falls area is more popular because Lake LBJ does not have the variance that Lake Tavis has. Sorry folks but we used to say you needed to like to hike as well as boat to buy at Lago Vista. I love Dripping Springs and the Wimberly area. I heard mention of Johnson City - too far out, I have marketed developments in all or these areas. But I agree with Bruce , Kerville has the best air in Texas. I don't know about you but I need that clean air.
You may try Bandera or Borne as well.
Good luck in your search
Horseshoe Bay is great for the golfers and any of the Highland Lakes is great for the water types.
There are also a number of affordable areas to live that are within a few miles of the shopping and medical care available in Marble Falls.
Good luck & congratulations!
Kimberly Olson, Realtor - email@example.com
If you like the Sun City concept, there is also the Del Webb/Pulte Sun City town somewhat in Georgetown north of Austin about 30mins or 1hr.