Thanks much ladies for all the feedback on the Birkin versus the Kelly.
One of the things that has struck me in making this purchase is how much I am driven by my head versus my heart. Growing up I had a very elegant and accomplished aunt (grew up in poverty and became extremely successful in her career), and the Birkin was what she carried. I didn't know what it was back then - I only knew it looked beautiful, but the association of the bag, with her, and my respect for her is probably the main reason why I fell in love with the Birkin. However, over the years, there are so many celebrities and people in my network carrying it that it makes me feel like it is a tad too overexposed, and I am a fairly low key person.
The Kelly on the other hand, is a reflection of my personal style - I like the sleek clean lines, and (I assume) less instantly recognizable to others than the Birkin, unless one is a bag affectionado. I have never handled a Kelly, only a Birkin, so I cannot attest to how it opens, but based on everyone's comments it seems the Kelly is more difficult to open/close, and harder to lug a lot of stuff around.
I am sure I will end up with both at some point, just for the first one, I want it to be something not just special, but that I can see myself using often. I think I will pop down to the H store to see if there's a Kelly that I can get my hands on and try it on before I make my decision.