Backup is expensive. Disaster recovery exercise is very expensive and bring no extra value to the customer. Managers wants more value for the customer to get more money, no extra expense. It's very hard for the security team to get some time on this kind of things.
The EEE is very useful when I'm out of office for a small trip or for a meeting.
The 17" laptop is practical when i have to work all the day in the customer office.
I can't really chose one. Both have some advantage