I agree -- check all your options. And should the alumnae association/age thing give you pause, some additional points to consider: 1) I know when I was in college, my best friend was in her 50s; even now my boyfriend is 20 years older than me, 2) sororities have a habit of having 'big sisters' -- so having members who are older than you is a nice benefit, 3) while ages may differ, aspects and takes on life seem to level out more once past a certain age, so the differences in interests may not prove as large as you anticipate, 4) YOU could become the inspiration for other younger alums to get involved! Good luck as you continue to evaluate.