Parts Prices, WTF?!

I've learned over the years not to do the final packing until paid for. The tape goes on after the money is in the bank.
I'm a serious buyer, when I say I'll take it...I'll take it. I usually ask for a pic all boxed up and ready for the post office then I pay. Far too many times I've paid, then the seller's life gets busy, and because they already have the money the boxing, packing etc drops on their priority list. Then I have to start chasing and that makes me crazy.