Well, there's a lot of people on Hive who appreciate him!
Science fiction is a narrative subgenre not widely appreciated by literary orthodoxy.
Funny, I don't appreciate Jane Eyre, which has most English literature people go nuts. I could clear the room with a lot of the literature everyone else likes and I abhor!
I love good science fiction. Of course, some of it is trash, but I was raised on Asimov, Heinlein and of course the incredible Ursula Le Guin, which I'm still trying to get @holoz0r to read. He might have something to add about Dick here, for sure.
I read Ubik rather recently. One of my favourite reads of the year, so far :)
I am currently composing a wish list of all the Philip K Dick novels on Amazon, so that I might be able to buy them all when / if they go on sale, and as a quick reference of what I need when I'm wandering aimlessly through op shops.