I never understand people with thousands of rollover minutes. It means you have the wrong plan.
As for cost, they're usually equal, or nearly so. If you're paying $50 less, do you have a discount or something?
No, actually I have the right plan. My family plan was/is the lowest cost nationwide family plan from 7 or 8 years ago, perhaps a tad longer, don't remember (no frills). I don't believe they still offer it but once you have it you can keep it. We used to use our cell phones only for long distance. Then after purchasing the iPhone I started using the iPhone for more calls. Still have well over 4,000 minutes. It was less than $100.00 per month, When I bought the 3Gs I included 1500 text messages so now it's $105.00. When I checked Verizon the closet plan I could come up with was around $150.00. I've heard they had a price reduction although I have not checked it out. I refuse to give Verizon another cent since they recently jumped my FIOS by $30.00 per month