Quote: But some have power cords as well...  

So I'm assuming these cables don't apply to portable amps such as ibasso/meier/RSA/etc?

Quote: You and me both!  "Well, if I'm going to spend this much, I might as well spend the extra money to get the better product, because I'll be saving money in the long run"  That's the logic I've been using of late.  

Quote: True statement.  If you plan on using them while traveling, it may not be a good idea to have open phones since everyone else will get to listen to the music with you.  Determine your primary use and needs/wants and that should get you headed in the right direction.  

Yeah...USPS tracking is a complete joke, where the other major carriers seem to me on the next level.  It's almost like USPS is saying, "hey look, we have tracking, too!!"