Ever wondered why?

Ok so here's a life long question, a deep thought provoking, profoundly theological conundrum...why are there so many greetings in Pauls letters, the end of all the letters are always full of random greetings...i always wondered why they kept those parts in the bible...I mean who cares about theodocles, and the two women at lystra (not actual quotes from any of the pauline letters) and why the whole 'council' deciding the new testament couldn't edit those parts out when they compiled the new testament...I even bet there were some of the council members who thought exaclty like me, and were like, well scratch those parts-lets only include the essentials of Pauls message...and they probably argued with the long-winded wannabies who wanted all the endless greetings to stay in...the jot and tiddle people you might say.
and that brings me to my long life of questioning...why? Why is this important enough to keep in the bible...those of us skippers can't even use these books for our benefit since the end of these books usually have nothing to do with the actual message of the book, they are just greetings to people we don't know, who are never mentioned again, and so we have to go back and read the entire book anyway. Lots of people had to read those parts for school copious amounts of times, poor preachers have to find reasons for those parts as they exegete their way through a book of the bible, with those of us who were listening to these sermons wondering why did I come today?...
then, I kind of had one of those brilliant light bulb moments where something clicked inside my head...and although I find myself truly happy by this, I do realize that from previous experience, what clicks in my head is not usually the most theological of reasoning or logical by any stretch of the imagination...and just because it clicks in my head doesn't mean it will find any sort of connection in yours...this used to deflate me once I would share out my thoughts in public. Because I found I looked like a bit of an airhead, but now that I know I am a bit of an airhead it doesn't worry me so much that everyone else doesn't get it, cause for me, it clicked...something i wondered about with thoughts like, "is there any point to this," all of a sudden is just quietly, calmly, and for me completely solved.
So here is my reason for why greetings are included in the bible...when you read a letter from someone you haven't seen for awhile and probably miss, you read it lots of times, you like the important parts about whats going on in their life, you get the message but you also aren't with them experiencing the same kind of life they are...you just get a letter about it and live vicariously through it...but the greetings at the end convey the fact that although your far apart...your still connected, you did once live a common existence, it can be a little reminder of where you stand in the writers life too...like when Paul mentions he is even writing the greetings in his own hand (to the Corinthians)...and all of a sudden the "love people you don't like and don't offend the weaker brother in the faith" message becomes less of a chore because he cared so much he even wrote greetings in his own hand....so if you are discouraged and you get this random letter that doesn't address any of the issues in your life at present and you are kinda like meh, they have a nice life but I am so not there right now...then they end it with, luv mum...or luv your sister and your all of a sudden like...oh yeah, your life is a part of my life...and your doing well, I luv my life:)
so my question was answered, why do greetings matter? Cause they ground you in your relationship to the writer and make the message personal, like a holy kiss personal:) and everything in the letter becomes special. Another question is answered, I see the light...maybe more like a candle than a light bulb but it's made reading the greetings and going to those sermons a whole lot more fun...so my friends, sadly there can be no holy kiss for us, but I do send you greetings in the Lord, with my own typing fingers even:)