Starwood’s 30,000 signup bonus is set to expire September 4, 2012 which is next Tuesday. The normal offer for the SPG card is only 25,000 points, so if you want this card you should do it quickly. The 30,000 offer also applies to the Business SPG card as well. Starpoints are valuable because a category 2 stay only costs 2,000-3,000 points and these are nice hotels located worldwide. 30,000 points could be stretched pretty far at 3,000 points per night. You can also redeem cash + points as well as get the 5th night free on category 3-7 stays.
(I do not earn a commission if you apply for the SPG card through my link)