I'm impressed you've made it through Michener's stuff. A lot of folks won't even pick him up when they see how thick the book is. I made it about 1/4 of the way through Hawaii.
I know what you mean. The books are very thick, but you can put it down for awhile and come back to it. It's a committment of time to read them, but they are so full of geology, history and facts, and a great story, usually, that the ones I've read have hooked me. I tried to read some of his other books and "snore..........................", couldn't do it.
Hawaii is the best though. My husband has read all of Michener's books and still says Hawaii is the best. If you've ever been to Hawaii, I think it's a must read.