Ah, if it would help, I'll take either the tornado or blue ostrich!
I know exactly what you mean about the "dilution" effect of having several iterations of the same style. I went through the same with Cabats and Venetas. I have no regrets about letting my unused ones go, and I don't see myself buying any others (unless I got rid of one, first).
I've passed on some pretty special bags simply because I knew the novelty of owning the item would wear off for me. I think I liked them more in theory, but I knew that something was holding me back, for good reason. These days, if I don't feel total excitement at the thought of actually using and wearing an item when buying it, I leave it behind. I am fortunate to have acquired some nice things. I now appreciate the luxury of being very selective in my purchases.