Just add up the widow price and see. This is something you should have thought about before the prices went up (like in May or something), but it's still likely to be cheaper. Also, you may go more if it's already paid for.
Honestly just do the math, day tickets at big resorts are insane now like $200+ some places. 4 days at that price and you're already at $800, the pass probably costs less. Plus like you said you'll ride your local hill more too since it's already paid for, even if it's only open 70 days that's still something. I got a pass last season and ended up going way more than I planned because I felt like I had to get my money's worth. The drive sucks but you can make it work, leave Friday after work, ride saturday sunday, drive back. 9 hours is rough though not gonna lie