While I agree with you that the club does hold an older age genre. However, I would not count on any generation of 20 year olds to pick up any previous generations hobby. The toy and video game collecting are good examples where it takes many years past 20 year olds for people to gain interest in past loves. I have been collecting since I was 30 and only in my 40s now with more than 20k chips. At 20 I had no interest in collecting chips. Where I would focus on the future are people who are my age since it has been about 20 years since they were even eligible to walk in most casinos. Plus 40+ seem to have more expendable income than a 20 year old.
Just my 2 cents.