It's just hard for people to adjust to that idea when it's around someone who's shown clear enthusiasm for what they have for a while and then just drop it; people are going to be naturally curious as to why.
I don't think he SHOULDN'T sell it; I'm sure he has a good reason. But I have to admit I'm curious about it, myself. Just like if you suddenly showed up with brown hair and a GQ haircut, I'd want to know why. ;-)