Best incubator

I don't own and havent tried this incubator before but there is one that's called the High Hatch Incubator at this website

http://www.mcmurrayhatchery.com/product/high_hatch_incubator.html

For $698.05 and is shipped pre-paied.

I would suggest checking it out.

Best incubator I have ever used is the new Ova-Easy 380 from brinsea. Better than the sportsman ever was. $533.00 + 30.00 shipping from Double R Supply. Check them out on Ebay. They have a website also but the better deal is on Ebay.

The BEST incubators in my opinion is the  Brower Top Hatch, and the Little Giant and another really nice one is the Hovabator-circular air model.  Very nice!  The Brower is the most expensive ranging around $150 or so but it's dishwasher safe and everything is included.  Awsome! 
  The little Giant is the least expensive,,,around $40-45.  Hovabator is around $ 65,,,I think,,,,,,
  Good luck!  I've used all 3 and they all work great and hold temperatures very very well and humidity!!!!  Feel free to email me if anyone has questions!  Julie

OOOOPS ,,,I just re-read your post and it said 150-200 eggs! ,,,the ones I listed only hold about 40 eggs or so.  Sorry about that! LOL,, I was reading too fast!   Hope you found one, Julie

A lot of the cabinet model have temperture variance between each level. On another site I saw someone post a similar situation. He asked if anyone had tried a new high output fan that is being marketed.
I saw his post updated and since no one had repiled he tried the new fan. He claimed his incubator was much more uniform in temp. All three level within .5 degree.

Well, frankly, I would go with a Lyon incubator. I prefer the TX-7 but if you need a larger one, go with the Roll-X's.