Here are the autoloader that currently sell for under $ 700 :
-Remington 11-87 Sportsman : Made in USA, gas operated, 2 3/4" and 3" only. Synthetic stock. Comes with only one choke (must buy the others at extra cost).
- Baikal MP-153 : Made in Russia, gas operated, can cycle everything from 2 3/4" to 3 1/2". Both wood and synthetic stocks available. Comes with 4 chokes. Sold in the USA as the Remington SPR-453.
- Mossberg 935 : Made in USA, gas operated, 3" and 3 1/2" only. Synthetic and wood stocks. Comes with 3 chokes. The Mossberg 930 version will cycle 2 3/4" and 3" shells only.
- Stoeger 2000 : Made in Turkey, inertia action, 2 3/4" and 3" only. Synthetic and wood available. Comes with 5 chokes.
The made in Turkey Traditions ALS 2100 is no longer offered by Traditions as it was apparently an unreliable model (I almost bought one a couple of years ago

).
I looked at (and considered) all of the above. I bought the Baikal as I found it to be the most versatile and the most robust. I am very happy with my choice.