I gues the price could be a little high for some people. But I think the most likely cause is that there are so many raffles going on now that maybe their popularity is beginning to wane. It's no longer such a new and exciting thing.
Also, I've seen more new ones in the last few days than I can ever remember seeing all at once. All seem like nice cues, but I'm only going to buy slots in the one or two I really like. I assume other people are similar, and so maybe all the interested raffle people are spreading themselves out.