I would suggest that:
The real world we live in is transient and ever-changing. What works today will fail tomorrow. Everything we have we will lose at some point. Logic tells us everything has a beginning and an end. As humans we have less control of events than we wish to admit.
These deductions, I propose, comprise one of the main factors which attract many to become and remain Jehovah's Witnesses.
It is the idea that all things will stay the same once this God is appeased. One will not get sick, die, see the good times end, or watch friends drift into memory. And, should times ever get bad, the faithful believe that this loving spirit will repair or replace all things until an eventual "do over" occurs.
While the doctrines and structure of the organization attract those of closed mind, the gates of "La-La Land" remain wide open for any who believe they are somehow superior to the rest and can avoid suffering cxommon to all. By their belief that they will outlast the majority of mankind, Jehovah's Witnesses are, in actuality, evolutionists.