It is really about your personal preference and your financial position whether buying is better than renting. Have this conversation with a trusted financial adviser who can review the cost of each option and help you look at the hard numbers.
Variables to consider will be all the fixed costs of the adult park, anticipated resale value, and your health.
Ask the park manager to share copy of the by-laws in advance and question how often the lease has adjusted historically so that you can plan how to not get priced out before you are ready to move out. Most of these communities have active social groups that provide warm and caring support groups. A definite benefit that my older friends enjoy. We've attended a few gatherings and the atmosphere is very inviting.
Apartments can be a great option due to limited responsibility for maintenance issues that creep up naturally over time. It's just so personal a decision that there is no immediate correct answer to give.
If you'd like an ear to bend to work this out, please feel free to contact me. Susan Draper, 360-539-1820