Alternator?

[ohhh my]

How often do alternators go out and how much is it to replace?

Last night I was on my way home from dinner and my battery charging system light came on, then my abs light came on, then my stereo and head light shut off. I had to pull off the freeway since it was dark out and leave my car parked overnight there.

Does this sound like a typical failing/failed alternator?

... Oh and even though all electronics in the car didn't work anymore(stereo, ac/heater, all the display actually turned off.) my emergency flasher still worked! good job thinking about the little details. it safely enabled me to get off the freeway without getting hit since my lights shut off too.