We used to have a land line before we sold our house and it was hooked up to an answering machine with caller ID and blocking abilities. Then we went without a land line for over a year while renting and looking for our next house. During that time we just used the cells. After we moved into our new house, we got another land line, and instantly the crappy political, sales, wrong number calls started up again. After one month of that, we cancelled our land line and only use our cells now. I will never go back to land lines. No more irritating calls, no more wrong numbers, no sales calls, no surveys, no politicians, and we save $50-60 per month. Why pay for a hassle..? In an emergency we have our cells, and internet (including wireless).