Should I change my iPod?

[sapol]

I currently have an iPod 5G 30 GB which I can sell for about 180 bucks. The memory is kinda full but I could delete lots of music (don't have many videos).

I want to buy an iPod Touch 16GB (about $375 after tax) so I'd have to add $200.

Pros:
- new ipod has wifi, huge screen

Cons:
- add $200
- less storage size


Options:
1) sell current ipod, add $200 (big money), buy iPod Touch
2) keep current iPod
3) wait for a next improved iPod Touch generation

opinions?