Wacky prices, or is it just me?

Lowe's and I don't get a long very well, but I do go there because its the most convenient place for me to get some things I need. Sometimes the prices they have on things make no sense. And I don't really expect any understanding from Lowe's employees, but I bring these to their attention just to aggravate myself. A while ago I needed a strip of steel. The price at the display seemed reasonable as I compared my options. When I got to the checkout the piece I had was about $2.00 more than the price at the display. I mentioned that there was a discrepancy and the response was "Do you want it or not?" That's about how I expected things to go. (remember customer service?)

Just today I needed to buy a quantity of screw hooks for a project I'm doing with my students. Buying things like this in bulk at Lowe's I knew would be a challenge. I did manage to find packages with more than their typical 3 or 4 per package. The size I needed was a #12. These came as 12 pieces per package for $5.27. Right next to the ones I needed were a #10 screw hook. These are larger - keep that in mind. These came as a package of 25 for $3.97. OK. So, I can get a much larger one in greater quantity for much less. Here's how it works out. Larger for .16 each or smaller for .44 each.

I took one package of each to the service desk to question this. Maybe they were marked wrong. I never did get to talk to someone at the service desk. They were busy trying to figure out someone else's confusion. A cashier asked if she could help (no), but I explained anyway. She scanned the packages and confirmed that the prices were right. So, I proceeded to try to explain that the prices made no sense. So, she called hardware, who, also being clueless, confirmed that that was the price. So, at this point I simply wanted someone to agree that these prices didn't make sense. But, the cashier could only say "But they are different sizes, so the price will be different". I agree. But not different the way they had them. So, I'll just go back some other time after a new shippment comes in and the prices are all different again. Maybe they will be right then. Actually, I'm just going to buy them somewhere else.