"I still for the life of me can't understand why the K3 didn't come with a USB port instead of the outdated com port. That is one reason I have not bought one yet."Really? A USB<->Serial adapter costs, what, $30? This is what's keeping you from buying one of the best performing amateur HF transceivers ever designed?
I'm speechless. Almost.
Other than a possible speed advantage -- and I say "possible" because there is no practical need for anything faster than a standard RS232C connection to control the K3 -- what friggin' difference does it make? Perhaps if the radio ported audio I/O through its serial connection... but it doesn't.
Besides, I've never seen a PC that didn't have a serial port, but there are plenty of computers still in use sans USB. And while I certainly wouldn't mind a USB port on my K3 in addition to the regular serial port, the idea of its ommission being a deal-breaker is beyond silly.