Brick Wall psychology: PAB cup filling strategy?
You aren't crazy. In my experience, the PaB wall ends up having only a handful of parts that I'm really interested in, so I end up getting a lot of certain parts.

I find myself walking back and forth adding the same parts that I know I already have a bunch of just because nothing else looks particularly interesting to me.

Several years ago, I filled up a small PaB cup and ended up with 62 of those trans-clear panels, so you're at least doing better than me. :)





In terms of strategy, I've found it helpful to check the inventories in advance and decide if it's going to be worth having a cup full of those parts. At this point, I usually don't fill up a cup unless there is a part that I don't mind having a whole lot of (e.g. 1x2 bricks in a rarer color that I like). If I fill up a cup it tends to look more like this now: