So, that means lost data eventually.
Plan for worst case and implement worst scenario recovery plans.
Plus, if you don't test regularly...
Backups are like Expensive insurance. You hate to spend money on it, hate to devote time to it, hate to have to have. But when all else fails and backups are there and save all of your customer's data... You'll be glad you had it.
Sort of like going with "no-fault" only on a 2010 Mercedes Benz 500SEL. If you crash it, you are stuck fixing it yourself and slowly and at great cost. If you had full coverage, you might even get a new 2010 to replace it. Almost as if nothing happened.
First time you have catastrophic Data loss, you better make sure you've archived *ALL* of your advice and be able to prove people off-put it, other wise... its your ass.