James R. Stoup, what makes you think that your needs are typical? I have a 70GB music library and it isn't getting any smaller as I have a habit of buying more.
Additionally, the kids out there are storing video too and that's a whole new ball game as far as storage requirements goes.
Nobody will ever need more than 60GB of storage on their iPod like nobody will ever need more than 640k of RAM.
How Much Cheaper Is the iPod Going to Get?