Apart from the obvious regarding the cost and choice of aircraft, the location of the home airfield relative to your residence is significant as is the `ambience` of the airfield. You do not want there to be arguments about the length of the grass or the hours of operation.
The main criteria though is to have a `happy` group which is viable and well run. You probably need a `first among equals` who controls and organises because that`s what he does best and he enjoys it and there should be no bickering about who did what and who didn`t. If there is a quick turnover of members there is probably a reason.
Mike W.