I just read The City & The City by China Mieville, which I saw won a couple of awards this year. And yes, I think I did pick it up quicker because I'd seen that it had won the awards. However, I'm not sure that this didn't in a way spoil some of my enjoyment of the book. Yes, it was a good read (though not close to Perdido Street Station (also by Miéville and definitely one of my favourites) in my opinion), but I found myself thinking that it wasn't as good as I'd expected.
I'd already read a couple of others from the shortlist for one of the awards and one of those (Princess, or the Spirit of Bois Dormant by Gwyneth Jones) I really enjoyed, so I was expecting a GREAT read. Now I know it's a totally different style from that book, and indeed from China Miéville's previous novels, but even so, it just didn't fully grab my attention, I didn't spend every waking moment wishing I was reading it. It was a GOOD book, with some really good ideas, but I didn't think it was a GREAT book. So maybe in future I'll hold off from reading something which won awards because I think I'd have been less disappointed with this book not knowing it was a double award winner.
Having said that, I'd still recommend it - it's an interesting mix of crime fiction and science fiction with some brain-twisting Orwellian concepts :-)