Take the opposing position. Why do you need a faster computer?
Wasn't your computer from 5years ago good enough? (minus the apps).
You were fine waiting the couple of seconds to do stuff with that old PC, your life didn't dramatically change
So whatever improvements you feel that prompted you to get a new computer, the same line of thought goes for SSD.
Nobody "needs" this stuff.
watch this relatively old video which helps explain it in real world use:http://www.youtube.com/watch?v=-lR0XoHFU6Yhttp://www.youtube.com/watch?v=MhYYx9ckR4Y&feature=plcp