I haven't had a POTS in over 10 years. If the basic service for POTS were comparable to what I get with Vonage or my cell phone, then I would reconsider it. POTS is just not worth the price. With Vonage, I get unlimited long distance and cheap international calling. POTS doesn't even come close for the same price.

Also, the reliability of my Vonage is comparable to a POTS. I have a backup power supply that provides uninterrupted power specifically for my Vonage system. The power backup has proven to be reliable during a few power outages over the years.