When I bought my A4 in the shop we compared the two units they had, also because of some minor issues with the painting around the skrews. Both of them had uneven buttons. In the end I took the one I testet first and that had the paint issues. Simply because I liked the buttons on that one more than the other.
I must admit I felt a little bit like being in a pet shop and you end up taking the hamster with the weird pattern and messy fur out of pity. I didn’t regret it. In a weird way, it’s my personal A4.
I just hope it gets that upgrade soon, currently it looks a bit starved. 