I actually considered this. I have a Verizon line through work. If i understand everything correctly, I could order the plan and phone from Xfinity, swap my verizon SIM into the X, and never use the xfinity line. Since I'd sign up for the "pay what you use" $12/mo plan, i'd only use it when needed.
Am i missing anything?
[doublepost=1509044962][/doublepost]It may be because of the phone, but a user online stated you can't pop a Verizon SIM in an xfinity phone. Again, may be a phone thing, but I don't think i'll risk it.
If I weren't switching to AT&T Fiber in Jan though, i'd seriously consider this.