Feeding the troll anyways...
The iPod classic will be there until SSD's can be had for cheaper, enabling Apple to sell the iPod Touch with 256GB of memory for the same price or cheaper than the Classic. That day is not far off.
The shuffle is still there as a low cost alternative for people who just don't want a touch, or people who like a small unit for a workout, which is what the nano's purpose also serves.
Just the other day, I was swimming laps in the pool, and the swimmer next to me had a waterproofed iPod shuffle. That's not really possible yet with the other iPods, not to mention the unit's small size.