You scored...
one helluva deal on that one! I just saw one in mint looking condition for $200 and thought that was a pretty good price.
Why in the world would they toss it out? I saw a number of vacs next to a dumpster at a thrift store recently but i didn't dare ask if they were being tossed...otherwise i would have felt the need to save them. Nothing in that group (all low-line bagless crap vacs as i recall) was even close to your find however, congratulations.