I just sold an older 2-stage blower for $50 this morning. It didn't run. Man said no problem. It has been sitting in the shed for 2 years. Ariens. Sold 2 Craftsman lawn tractors this week, for $350. Gave some other stuff away. Cleaning out--get what ya can, while ya can! Nothing is sacred. Tired of looking at that stuff.
And, wife complaining!

might chk around ewbay, craigslist...

$250 to $375 is the going rate for a prestine 5 Hp Blower of that vintage these days.

How market conscious (greedy) are you? :-) Wait till the first good snow of the season, everyone panics and all the snow throwers are sold out. You're ready put up nice color pics at the appropriate places around town. Have it all tuned up and ready to "rock and roll" probably add at least $100 to fair market value. I've never done that, but it's fun to think about it.

Good luck,

Ev