M.B.
We dont' have a oreck but I have gone through about 4 vacuums in the past 4 years- needless to say they all don't do well.
We decided to go to an actual vacuum store rather than walmart, kmart etc... He recommended Simplicity- which we got and I really like it so far. I got it in January. It has a 3 year warranty & seems to do quite well. I asked him about the orecks & he said they have great advertising and they are a really light weight machine which is great but he said that they didn't use quality parts. Not sure exactly how much is true but he did go over a little bit about the roller & pulled it out & said to make sure when you are buying a vacuum that you don't purchase one with a plastic roller. Hair etc.. can get caught in there & then cause problems for you. Anyway- my suggestion- look around, go to a vacuum store & get some advice from someone who knows a bit about vacuums. You can always shop around til you find the store & the person you feel knows there stuff. :)
Best of luck.