Making it happen
Think about this
If your system crashes and your part-time bookkeeper has forgotten to take backups you could be out of business.
Security
You don't keep your money in a sock! You store it in a bank guarded by professionals.
Think of Netsuite as a bank for data. They are looking after your data 24x7 in a protected environment guarded by security professionals. Netsuite guarantees 99.5% application availability, and actual uptime in 2007 was an astonishing 99.97%.
Your data is safe.