Like title says, I did get a non DVR box finally. The local office refused to allow me to return the other new non X1 box as they said it wouldn't work with a house that also has any cable card based devices like my HD HomeRun Prime, Samsung media player cable card set top box, or a Tivo.
I was bummed but remembered I still had the card they sent me that offered a free self install X1 kit through the mail if I signed up online with the code it gave me. I figured what the heck, I doubt the X1 actually conflicts, they either don't know or are trying to get me to dump my stuff and use their gear again. I ordered it online and it got here in less then a week. Its the Samsung VG2 v2 I think and just to be safe I unplugged the cables to my cable card stuff and the box prompted me to activate onscreen with my address and account number. It recognized me and did it's thing and it was up and running in less then half an hour. After a bit I noticed all the extended basic cable channels I pay for and my one movie channel all said I needed a subscription to watch them etc. I called the main 800 number and waded through a few menus till I got a live tech, told him what it was doing and he said sometimes the system refuses to fully activate all the extended channels and he'd fix it. Took him 2 minutes and almost immediately all my normal channels worked. So far there is no issues at all running my cable card stuff and this box together, everything plays nice and works as it should.
Also as long as it's your main box and no extra DVR included it's a free upgrade, and no rent per month afterwards either. If it's a extra box it will cost whatever they charge to rent another one for the bedroom or something.
SO, price is right, it does work with cable card stuff no matter what they try to say at their offices, and you can get a non DVR version that still includes replay or pause on live TV, plus the much nicer guide that is similar to Plex or Tivo and has a bunch of extra features that are nice.
If anyone here got the free upgrade card and doesn't have any cable card or Tivo stuff you can go to a Comcast office and get one, or if you do have the cable card stuff just order it online and they don't ask anything just send you a box similar to what you had before except X1 based.
The Tech also gave me all HBO channels free for 3 months with it turning off after the 3 months without me having to kill it to avoid paying extra for more movie channels because he said I was a long time customer deserved a free reward for sticking with them. He even had me make sure they all worked before we were done then we chatted about Comcast stuff for a bit, very pleasant experience overall for me and QUICK resolution of my issue.