What would you consider a good miner? I only want to spend $100-$200 and would like to ditch these au3's for something that I can turn on and forget about.
Get an S3+, it will do 450-500GH/s (depending on clock settings) rock solid for ever and you won't have to do anything for it. They are right in that price range, including the psu (I have one for sale for an S3 if you need one).
If you want to stay with usb miners then get like 4 compac sticks and run them 15-20GH/s each. They are great little miners.
I use mine for lotto miners just for fun. A S3 is a tad big for me on lotto. I don't like paying electricity very much on lotto miners.
So I have 3 U3's and 7 compacs that make up my lotto miners. They are working great as of now. Rest of my miners all mine on pools.