Forgot to mention: the SB, Kahles and Leica were purchased as clearance items and well under what they originally went for. You can still find the Leica for 1249 at EuroOptic. Used deals can often be found here on 24HR as well.
Also, if you can keep your shot opportunities to 75 yards or so, the Leupold VX-R 3-9x50 firedot duplex will work fine. It does not have the resolving power for ethical shots at longer ranges in the poorest of lighting, but it will certainly do fine within its limitations -- and it can be found for around $500 or so.
