Is it Worth to Buy a Netbook?

I have been planning to buy one, and still contemplating if I am going to pursue buying one.

I am eyeing for Asus eee 1005HA Sea Shell or 1008HA- Sea Shell and sure that either is the one that will suit my needs, but I am still having second thoughts. Why? because I still have Phoenix and Fire , my NEO and Toshiba Laptops lol.

Then, why in the world do I need to buy a new netbook?

• I need to monitor my online sales, which I can’t do when I am on the go, or while in the office, since most of the sites that are not ‘work’ related are blocked (including mails)
• I need to edit an excel file which serves as a debit and credit tracking, which right now, I can’t do unless I’ll transfer the said file back and forth when I am at home or in the office.
• I need a light weight laptop that I can carry around where ever I want to go.
• hmmmm what else…

So, Do I really need to buy a new netbook?