I was a member of Mensa till I found that it was totally useless. Your mileage may vary so it is worthwhile understanding what you want to get out of it. Here are some things that I have found:
* a benefit to put it on your resume: NO
* a place to meet like minded people: MAYBE but you may have better luck at your local pub/bar/gym/grocery store
* a group that sends out an interesting newsletter: MAYBE but it depends on your local chapter
* a valuable recognition similar to "Won Nobel Prize", "Went to the Moon", "Climbed Mt. Everest": NO
* an indication of "superior intellect": NO, Mensa is the 98 percentile group, in theory the membership could be 2% of over 5 billion. Not really superior. If you want that, try for TNS (Triple Nine Society)
* a good way to get a credit card: NO, the people at Mensa International and the people you have to talk to when you get this card are not members of Mensa :(
* a benefit to put it on your resume: NO
* a place to meet like minded people: MAYBE but you may have better luck at your local pub/bar/gym/grocery store
* a group that sends out an interesting newsletter: MAYBE but it depends on your local chapter
* a valuable recognition similar to "Won Nobel Prize", "Went to the Moon", "Climbed Mt. Everest": NO
* an indication of "superior intellect": NO, Mensa is the 98 percentile group, in theory the membership could be 2% of over 5 billion. Not really superior. If you want that, try for TNS (Triple Nine Society)
* a good way to get a credit card: NO, the people at Mensa International and the people you have to talk to when you get this card are not members of Mensa :(