I have 10 lines on Verizon and have been with them over a decade. We need some new phones, but we keep ours a 5+ years so they aren't worth much for trade-in. Knowing that, it looks like our best option is to leave Verizon and come back when our lines are considered "new" again so we can get those promotions. How long do our lines need to be with another carrier before Verizon considers them new lines if we transfer back?
