I buy all my stuff at Hamfests----you have it it in your hands there & then!
Also, it has to be "dirt cheap", or I can't afford it!
I've given up looking at eBay, as whatever you look for, you are confronted by a million Chinese companies selling something you don't want!
Some US stuff looks cheap, but the seller doesn't want to be bothered with selling outside the "contiguous US states", so quotes packaging & shipping figures like $2790!
There are several Oz companies which buy tons of stuff & ask ridiculous figures on eBay.
Even with reasonable Oz sellers, Interstate shipping is often nearly as much, or in some cases, more than the price for the purchase.