Re: Found a nice looking vintage jo.
Maybe some one bought a bunch of these in years past and didn't sell them or need them, so they dumped/sold them to this place. Hence them having several. Some stores like that will only put out one to make it look more unique and to make you think "If I don't get it now, someone else may and then I'm out of luck."
Either way, if it does splinter easily, you didn't spend too much money or if you think it may splinter, use it for solo practice. Interesting looking either way.