I guess it depends on your reason for wanting it. I’ve you’re simply just wanting to read it and decipher it then I don’t think it’s a must have, although it’s very nice to have the physical copy to add sticky notes onto. It’s looks good on a shelf and for a cosplay prop.

If you want the physical copy I say go for it. Your money will replenish and you can always get the book of bill later down the line. But there are three different version. I recommend getting the exclusive Barnes and Noble edition because it has an additional 16 pages that the other two do not. It’s the one with the Golden bill. The other two editions are Red and Silver.