October? Heck, they were making snow in September! 92/93 was the first Oct. 1st opening at Killington. It was my dad's last season there. He was the Upper Basin Manager, and made the push to get the product on the ground and the lifts turning on 10/1. There were some eyebrows raised (even within the company), but they did it and it worked! They did it a couple times after that as well (93/94 & 97/98 ) .
It's certainly not profitable, but it's marketing points and it gets people excited. It only works, really, if you're the only one doing it. As soon as 3 or 4 areas are "competing" for first to open, it spreads the minimal early season crowds too thin, and takes the marketing emphasis off the individual areas.
your dad is a good man!