This is exactly why Newt should stay in.
Yes, absolutely Newt should stay in because it looks pretty close to impossible for Santorum to get to 1144, and Mittens will have a “seriously” difficult time reaching 1144 if Newt stays in soaking up delegates.
I mean, these campaigns don't just happen on their own accord and you don't expect Newt to go into 20 years of personal debt and sell everything he owns, do you, to criss cross the USA and run TV/radio ads and stage events and do GOTV?