Brinsea is very good, but very expensive.
Incubator Warehouse has a couple of Little Giants for under $100.
http://incubatorwarehouse.com/egg-incubators/combokits.html
With the less expensive incubators, you'll be doing a lot of hands-on during the process (turning the eggs manually several times a day, for example), but you can get a decent hatch if you're attentive. Do get a separate humidity monitor and calibrate it. Something like this:
https://www.amazon.com/gp/product/B00MXEA3X0
works fine.
And I wouldn't trust the temp read-out on the incubator panel either.
Also, check Craigslist for a used one. It doesn't hurt to look. Clean it out good with a bleach solution before you use it.