Much more hassle when one inevitably forgets the combination or loses the key. Kind of like ransomware without the ransom part.
That's just making up an excuse to reject an idea. 'Backups' - you know you can make copies of keys, and write combinations down, right? If you lose access to a safe because you lost or forgot something, how did you ever manage to own anything worth keeping in the safe?
'Real' safes are fricking heavy and even with the right people and equipment are absolute bastards to move anywhere. Over the years I've had offers to acquire "no longer required" safes for free, if I was prepared to take them away. Every time the logistics have made it impossible or impracticable.
Well you weren't being resourceful enough. Pic.
"We found the combination to that safe eventually. Lucky we did, it had several reels of platinum wire in it."
A fine demonstration that you should have tried. A good locksmith could probably have determined the combination.
Short story: Years ago I helped some friends clear out a business, one of many in an old multi-storey building in central Sydney, where the property owner had given all tenants short notice to leave, because the building was to be redeveloped. During this I had a look around in the rest of the building, all of which was in final stage of everybody gone. In one obscure upstairs area, I came across two guys who had three very large safes on their backs on the floor. Obviously removed from various now vacated tennant spaces. They were using a big magnet-base holesaw drill to open them. One down two to go. They didn't seem comfortable to be discovered, so I left. Carry on...