Due to my busy schedule, I have yet to button down and go looking for a dependable car. Because of that, I have to bum rides off my friends, and that requires a phone. I figured that a pay phone would be okay for a while, but the experiences were horrid. There aren't many conveniently located, and 10-yen coins only give you a short amount of time when you do find one. You can use 100-yen coins, but the machines never give back change.
Phone booths are even worse, as they are too cramped to do anything.
As the phones constantly get smaller, the technology involved gets more advanced. This has spurred a boom in sales, as well as made the keitai a necessity in modern culture. I chose a company, but started to ask myself questions. By the time I chose one, my mind was spinning, but there were more questions to be asked by the salesperson. If I wanted to communicate with friends, I'd call them.