Kind of dissapointed in how long it takes a lot of our vendors to ship, I pay a little extra to buy from the US to support American business and then the overpriced vendor prints the shipping label immediately but doesnt bother dropping it in the mailbox for a week. Seems more common than not these days and is especially frustrating when you pay extra to ship faster only to have it not leave for a week. I do a lot of e-commerce and this is not the norm for other industries, I get some vendors get clogged with orders for a sale but most of the time its just laziness and poor business.
/rant
I rarely have that problem with vendors, but I can understand how that can be a .... move on their part, and some people will think it's USPS that's really slow whereas like you said, it's the vendor who is slow in actuality.