Kinda hokey...

Next question is why are you buying brake parts from Classic, any local parts store can get the parts.

One reason is I'm dealing with a vintage car that will be 50 years old next year. First, buying things like "brake hardware installation kits" with multiple pieces can be a nightmare...the last time I bought rear drum brake parts for my Dakota 2X4, I had to go back 3 times to get the right parts because there were several different options. If Classic says an installation kit fits my year, I'm going to trust that it will. Return shipping can be expensive as hell...
Second, when they sell NEW drum brake cylinders ready to install for ten bucks apiece, who's gonna quibble over that? IF I could find the seal kits, and IF they cost less than 10 bucks each, I'd still have to hone the old cylinders and hope those 50 year old parts aren't pitted or corroded beyond repair.
Third, brake shoes...yeah. I could get them anywhere. But I needed to bump the order to $99.00+ to save $20.00 or more in shipping, so I threw them in on the order. If you subtract the (now free) shipping, I paid around 15 bucks for the shoes.
Last but not least...when you buy from a supplier like Classic, one should expect the quality to be as good or better than a lot of the garden variety auto parts retailers, who we know for certain are selling Chinese stuff. Not to say that some of the stuff Classic (and other restoration suppliers) isn't Chinese...I'm sure some of it is...but they have a reputation to uphold. So, there's that.