I can see that, honestly :-D
I don't know if this will change anything, but, there was apparently a re-release of book 1 where the author re-wrote parts of it to bring it into quality standards with the rest of the books ... not sure which one you read, but, maybe it would make a difference? I got interested in it after the re-record, so, I dunno how big the differences are.
With that said, these books are around the size of The Stand by Stephen King, each, so, if you read half of it, you definitely gave it a fair shot, lol