I hated the headphone jack. It was a giant hole at the bottom of the phone. Gross.
You might of hated it and that's fine, being it was not of use to you apparently. But for some, it was used everyday and I had a small amount invested in wired headphones, but to label it as a 'Giant hole and gross' seems a bit extreme. Ancient, yes, but useful to many who truly appreciated it.
I do welcome the future though of Bluetooth.