First question I ask myself is, "Do I like the look of this car?" If it's a no, it can be as fast and cheap as it wants! Believe it or not though, I do get why people are getting fed up and have (relatively small in the scheme of things) financial considerations to want to jump ship, especially if the price and spec is there or thereabouts, with a "guaranteed" delivery.
Bear, it's a tough decision, and one I'm very happy to not put myself into a position of needing to make!