I bought a Poulan about 4-5 years ago for a truck saw, instead of having my new 545 Husky bounce around in the bed and set outside in the rain. Somehow over time I forgot that I had the green one and lost track of it for a year and a half. A few weeks ago I found it, luckily with an empty gas tank. I dumped fuel in and it started right up, so it's now taken the place of my Husky in the back of the truck again.Poulan/Craftsman saws from the 80s are very good saws.
The Poulan Pro/Craftsman chainsaws you find today for under $150 new are gonna be the smaller ones (34cc usually) and with no vibration protection. Even those saws work OK for the occasional user who does not operate it for more than 15-30min at a time, and who actually maintains it. Note that these cheap saws use Walbro or Zama carbs, just like the big boys. They do tend to have plastic pinion gears in the oil pump, which wear out easily.
You are dead on about the vibration though.