Add to that...

80% is harder to shoot as accurately as 65%. Holding fewer pounds at full draw makes it easier to torque the bow and cause it to angle away from the string's plane of travel. That causes an arrow to do all kinds of wierd things, even from a well tuned bow. Not so much of a problem until you on your cold weather gear, and your gloves cause you to get more palm into the handle than normal.

An extra bonus is you will more than likely pick up a few feet per second in arrow speed and kinetic energy because 65% stores more energy than 80%.

If you've been shooting 80% for a long time, then 65% is going to feel pretty heavy until you get used to it. But I think it's worth it in the long run.

Sorry to hear about your pro shop. Hope they can rebuild.