Is there any reason I shouldn't buy these? I use my current 10x42's constantly. It seems like it would be real nice to have a rangefinder built right in. (One less thing to carry.) Besides price is there any reason a guy shouldn't buy these? I mean like are the Swarovski's or Leica compact rangefinders better or more handy? I need a range finder that will consistantly range antelope, deer, prairie dogs out to 500 to 1000 yards. Anyway I'm very near to taking the plunge and want to be as sure as possible I'm spending my money wisely.