Ladies and Lady's fingers!

What is it about these aunty jis and ladies who shop at the Indian grocery store's vegetable sections? I haven't been able to figure out in over one year of shopping, how do they choose the perfect lady's fingers??? Most of the lady's fingers are old, overripe, huge, thick, brownish, going yellow, fibrous. So in such a bad heap, how do you pick the perfect one? As they do it deftly, I try to steal quick glances, watching their fingers, wondering what is so special about the piece that they finally decide to bag. I have still not been able to figure out.
There is one small crate of lady's fingers, and three or four ladies hovering over it like vultures, their fingers sorting through the pile. Every lady feels that the piece deep inside the heap must be the best, so they keep digging in deeper. I notice they try to snap off its sharp end with their fingers, tender young lady's finger snap easily, so these are chosen. Whereas, their overripe friends are quickly discarded back into the heap.
Just imagine, auntyji after auntyji, sometimes some young ladies like me, all of us, snapping the ends of lady's fingers stored in one small crate.... Just think logically, won't the so called 'best tender ones' be picked within an hour? I tried copying them, to fish out the smallest, greenest pieces, but most of the pieces look identical to me, they're all as bad or as good. But every auntyji feels that she's picking up the best by sorting through them.
As for me, I still fail to understand the guidelines they use to pick or discard a piece. I just pick what my heart tells me to, my heart is not a filmy irresponsible heart, so I don't pick any brown or yellow pieces, or any very huge overripe ones, but I do not yet have an auntyji's heart to feel the psychology of a lady's finger!
I have a long term plan, when our parents visit us here, I should go vegetable shopping with mother(-in-law) one day and learn some vegetable psychology from her.