360 Slim 4GB, Worth It?

[Slay]

My 360 broke, so I bought a new one, I have a 250GB HDD.
I bought my new 360 refurbished, (Doesn't come with a new harddrive)
When at the store, I saw a new 360, slim.
For 4GB of mem and that's it, it isn't worth it, what are some reasons to buy this?
A regular 360's HDD is bigger then that for a slim, I know I can buy a better GB HDD for the slim, but I am not about to spend my money on that.
Plus, if I want all my saves, I need a transfer cable, wich is like 20 bucks, slim sells for 199.99, BTW.