I think they are great guns, I have one in 30-30 and it shoots great. Go to http://www.go2gbo.com/forums//index.php and scroll down, there is an entire forum on for the Handi Rifles and Pardner Shotguns. Of what I have read, the 243 will not shoot as accurate at the other two out of the box. There is a thread (FAQ IIRC) at the Graybeard site that has lots and lots info. Check it out, there's a few days worth of reading there. I myself would not hesitate to purchase another Handi, and would really like one in 270. Great guns for the money and you can get 2 or 3 for the same money as a bolt action.
Read your thread again, new they go for $225-$250, used you should be able to find from $150 and up. I saw one in 44mag a few weeks ago for $200 that I gave great consideration to, being that I already have a 44mag revolver and ammo. There is a classifieds section at Graybeards also, keep an eye there, they come up from time to time. If you find a handi but in a different caliber, you can always have another barrel fit to the frame.
Scott7m-Why do you think they are not quality? Just because you don't have to sell your first born to afford one, doesn't mean they aren't quality. They are a well built basic single shot rifle at a good price.