what has happened is that I stripped out the threads on one of the bottom case screw holes. I had a good reason to pop off the bottom case, I own a pentalobe driver, and I had my machine open and laying on my bed, and I happened to witness a bug land on the screen and when I shewed it off, it fell into the hinge and crawled into the machine through the vent holes... upon replacing the screws, one of them wasn't going in straight and I ended up cross threading it and stripping it out upon removal... Great. So now my OCD is killing me and I'd rather just bight the bullet and replace the upper case to resecure its resale value.
I know Apple sells battery replacements for $200 + labor for the retinas which also include a top case. I wonder if this price is also applicable here as well.