I also don't enjoy it. It's tiring (TMJ) and I feel like it's so much slower than reading to myself. But I do love the discussions, looking up places on maps, etc. I have built up my stamina over time, from 10-15 minutes to 45 or so. Sometimes I split the reading into 2 sessions, one after lunch, one as the last thing we do for the school day. I don't enjoy bedtime stories; I'm usually bushed by then.
I stick with it because I do believe in the benefits. The kids listen to audio books during lunch so there's that too.
Thats said...the best reader I know is DH. He reads 2-3 books/week and before we had kids could read 1500 pages in a weekend, all with excellent comprehension and recall, even years later. His mom was a librarian and he was raised in a very bookish home, but nobody read to him after early elementary. I also love to read, but am much slower. I don't recall anyone reading anything to me ever, except when I was being taught to read.