Hey guys new member here! I've read through this thread (and many others) regarding broken charging ports.
I too suffered from a broken charging port and had to pay $100 dollars to replace (I went through the same crap most of you did with HTC and Sprint)
Similarly to others, my phone was launch day as well. And upon receiving my new replacement Evo, the quality difference between both is significant. The screen and speed of the phone are remarkably better.
My new one is way better and hey at least I have an extra battery, 8gb card, and CHARGER! Not a horrible waste of the $100 at least.
It seems to me many of the launch day phones were cheap. I am blaming my charge port break on 2 things. 1) Radio shack car charger. Cheap quality and i think could tug on the charging port
2) cheap hardware on HTC side, albeit my new one is better