I would highly recommend jumping up in price for a little more durability. I have this VisionFitness model and it has been a great buy. I also liked some Precor models I tried out prior to buying the Visionfitness.

Here is a link to Runners World reviews. The last few in the review are in your price range.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70