If money wasn't an issue, I would have 3 different optics
10x42 for casual use
15x56 for all day glassing
spotting scope for verification / field judging.

But I live in AZ where glassing is a must (for anything other than bulls rutting in the high country)

Otherwise, if money is an issue, I agree with Texan. Buy one topquality bino, and no the nikon monarchs are not top quality!