I like the look of them. I'd think of one like that very much as a backup as others have said. That being the case I'd want something which could be left to itself possibly for years, with no maintenance required. So for me I'm not sure that O1 steel fits that bill. So in case it's not clear I voted "not sure". 
But if you had some off-cuts of 440C, D2, or even RWL34 that might be different...

But if you had some off-cuts of 440C, D2, or even RWL34 that might be different...
