The USPS is "Priority Mail" - only some products feature this type of confirmation.

The UPS is Ground service. I have no idea how much the actual costs are because they're purchases which no doubt had handling factored into their shipping prices - or the shipping was free, I can't actually remember right now which order cost how much.

I don't think anyone is trying to tell you that you see anything different than what you've mentioned. Just trying to show you that USPS does offer some information and it can be quite useful.