The pengo notes aren't as cool because they don't have all the zeros.
It's still cool for my purposes. In addition to maybe carrying something well-known like a 100T Z$ in my wallet I'm trying to collect a bunch of great examples of currencies lost to hyperinflation to have matted & framed. I just think something like that would look awesome on my living room wall. I also wouldn't mind large-value Yugoslav dinars, German papiermarks, Greek drachma or old Taiwan dollars.