We have the Little Giant forced-air bator. Runs about $85-$95 at most feed stores. It does not have automatic egg turners, but I work from home so stopping to take 30 seconds and turn the eggs 5 or 6 times a day is never an issue. Once we got the temp and humidity stabilized and found a spot in the house that maintains a good ambient temp, it has been a reliable bator thus far. Our current hatch is the first one we've done in the LG, and so far we've had almost no loss of eggs in that bator. I think we've culled 4 out of 15 originally put in there, which isn't bad, and we go into lockdown next Thursday night at midnight (12:00 a.m. Friday).
Then there's the homemade one we built for under $30 including the digital thermometer/hygrometer.