Dont but untill you can look through them. Ive had Zeiss binoculars, but never owned, nor looked through a scope of theirs. The glas on the binocs were amazing. Crystal clear. However...I have owned a bushnell scope. It has held up great! A little fuzzy but a great overall scope. I also just ordered a bushy spotting scope. Should arrive in half an hour.
I know its not what you wanted to hear.....but I wouldnt even consider laying that kind of money down for something I cant see and feel. For 700 bucks a drive to cabelas, or other dealer is in order IMHO. Pick up whatever else you need there as well! Also, who knows! You may find a different scope that fits your needs better while your there.
-Dave