My theme song switches from she's a rebel to punk rock girl. There are other songs that might fit better but they aren't available through my carrier. I have custom ring tones for my husband and my friends. I want a new better phone so I can actually have the actual songs. Lots of songs just don't translate very well to ringtones. Especially when they get the tempo wrong, that drives me crazy. I don't know when I got to be a gadgety girl but that's definately me now.
Basically if I like my ringtone, it makes me smile when the phone rings. A phone ringing doesn't make me smile but a favorite song as my ringtone does.
But if you're not into ringtones, that's okay. My favorite is the old fashioned phone. That one always cracks me up.