Hi,
thank you for your kind words, although I wouldn’t call myself an expert at all, haha! I just love the bag and happen to love it enough to get duplicates... I couldn’t tell you where the serial number is for the life of me and I can’t really say that I know much about Dior as a brand at all. It’s just that the Bobby really suits my lifestyle very, very well.
As for your question I have seen on my bags that they develop a few small lines and creases on the surface of the leather just above and behind the buckle. I think they’ve been there almost from the moment I bought them. They aren’t very noticeable (to me at least) and don’t seem to have softened or damaged the leather. I think it’s difficult to avoid as long as it’s necessary to bend the buckle slightly backwards to open the bag. To be honest I’m not bothered about it. I find that the whole buckle section itself is very stiff so it’s difficult to imagine that they would develop into big or deep creases/folds unless you really bend the buckle into unnecessary or unnatural angles.
I love the dark tan Bobby, what a rich and saturated colour! Lucky you! Hopefully you’ll get to use it out and about soon

Honestly, if you’re uncertain about adding another I think in the long run it’s more expensive to panic buy something and then regret it rather than just buy it when you know for certain - even if there has been a price increase in the meantime. Just my two cents. Good luck!