It's easy to let bias get in the way of accurately pricing a domain, which is why seeking multiple opinions can be helpful. I like the branding potential of this one and I also like the way "cloud cheap" sounds...it flows nicely off the tongue.
Cloud computing is gonna be HUGE. It's been a buzzword among programmers and tech folk for a while now, and it has very quickly made it's way to the mainstream (among "regular folk"). The full impact of cloud computing on the world has yet to be realized...I would personally hold off on selling this one until the right buyer comes around.
Depending on the direction that cloud computing goes, and how the word "cloud" gets adopted by the mainstream, this one could increase in value dramatically. It's a good candidate for development while you wait for the right offer. Of course that "right offer" may never come along, but this one has enough potential that it's worth holding on to IMO.
But like I said before, it's easy to let one's bias influence how we value a domain (and I'm def. biased on this one). I wouldn't expect to get much out of it selling it to a domain investor, but $xxx to and end-user is under-estimating this one's future potential IMO. Cloud computing is still in its infancy...I would develop and sit on it.