The Presidents Club memberships will only be "quite a bit cheaper" than Northwest WorldClubs through October 31, 2000. I feel that a lifetime PC membership is a good investment if you can utilize the clubs throughout the years. Do the math and decide. They are wonderful clubs.

The following link may offer some general information. Take a look at a Continental Airlines President Club, including a 360 degree Virtual Tour.
https://www.onepass.com/presclub.htm

American Express Platinum allows for visits only on actual dates of travel with proof of ticketing.

Good luck with your decision.