Sure, but it is just a file manager (although a good one indeed). $74.95 (still a quite high value in real money) is too much IMHO.
He could ofc take the double of that, and someone could willingly pay that. But ... come on: $74.95 for a file manager?!
(Yep, I take the lifetime license as my point here. To me, all other license types are just paid trials.)