USPS lost my trade in phone needed for a rebate

Has no one else found extremely odd that in the 100s or 1000s of packages we've either sent or had sent never gets lost or has as my delivery issue? But for some reason a good amount of ppl just happen to all have their very expensive devices mishandled or mis delivered thru USPS? makes me wonder if Assurant packages are easily identifiable and easily concealed. Wouldn't surprise me either if all the returns get routed thru the same sorting and distribution center on there way to Assurant, all it would take are 2 or 3 employees at that Usps center to take dozens of phones, especially if it's known those particular packages aren't insured so id imagine if they happen to get lost they would be casually filed in with other standard class mail. Just a thought but either way seems really odd for the one time ppls packages don't get delivered like usual just happened to be when there's a easily identifiable item worth more then $500.