Get em for her. You’re a lucky man. Been with my wife over 40 years and she’s been in my boat less than ten times. Buy her the best you can afford.
As for the difference, it may also be a sweet spot on the brush. I fished standing timber and all of the fish on a couple of trees would come from a 5’ circle, all day. Maybe some preferred branches in one spot, who knows, theys feesh and sometimes make no sense.