We joined in December of 1991. Our use year is February, so our membership technically started in 2/92.
We're pretty sure that the price per point was $51.00 when we bought, with a 210 minimum.
The length of stay passes were great. They were based on the size unit that you were staying in. We always had a 2 bedroom, so we received 4 complimentary passes. (There are 5 of us in my family, so we'd get one AP.)
Remember, this was a completely new concept. We were among the first 500 to join. Fortunately, it's been a huge success, but it could have bombed.
It was a great price, it was a great incentive, and it's still the best investment that we've ever made.