I may have been impatient with waiting for the blue to wear. I guess I wanted it to lighten up instead of darken.
I don't think any of the leather will wear lighter...
I had the midnight blue leather case for a little over a week and could already tell the wear was darkening the case. Considering my main complaint was that it was too dark to begin with, that's what sparked my switch to the olive brown.
Having said that, I'm sure the wear will be much more visible on the brown than the midnight blue... just because it's lighter. I'll keep an eye on what this ends up looking like over time, but I agree with several others in that I think the wear will make the case look good/have character