Two things. First, yes, you should focus in life and don't let things get you down. So, it sounds like you did the right thing. Second, with supply and demand, yeah, that is how it works. And I say it is important. I find these things interesting. Older books may say things that some of the newer books may not. Depends on the book. But some things can be very rare. It is possible that some things are not on the public Internet. Well, some things may be on like the dark webs. Some things can be hard to find. I like older books.