moi believe this has been debated before...right here:

the perpetual debate of desktop or laptop

LOLOL

me thinks you should consider how you will use it.

Do you usually sit at the same place? Do you like to use it sitting at different areas?

Do you travel a lot?

Do you like birds? Ok, this may not have anything to do with it, but if you like to sit outside to watch birds and wondering what bird is which and want to look it up, a laptop will be better. LOL