But there must be many other who believe it is an ok gamble, correct? My contract would just be for one year. I already have a small contract but I can now get many more gh/s for the amount that I paid for the first contract. It's sort of a way of "averaging down". It's makes me tempted. I also find the exchanges to be off putting as I don't want to hook up my bank account to it, etc..
Sure, they have plenty of customers, and it is a pretty good price.
Be aware that they may wait 1,5 months before actually starting, largely decreasing the value of your hashing power. I gambled for the 20GH/s Silver contract at the beginning of January and enjoy looking at getting bitcoins in. It is fun to also be involved in mining bitcoins, but it is a risky investment. Don't invest money you cannot miss.