I'd say that I seriously doubt Larry Kudlow has any gold.
If Kudlow is talking about paper gold (ETFs), then he's probably right. ETFs have proven to be a fool's game. While I don't fully understand them, I do know tha they trade in quantities far greater than they possibly could if they were truly backed by physical metal. Selling the ETFs and holding cash in preparation for better opportunities makes sense in my opinion.
And if Kudlow is talking about selling physical, then I think he's nuts. Kudlow has been anti-gold for a long time. To his credit, he's been right. Gold has been a lousy investment for close to seven years. But suggesting those few people with any physical gold sell it now is irrational. The price is way off its peak and is far more likely to surge upward now than any time since 2011.
Will it? Of course. I just don't know when. But then, I can say the same for the dollar.
I'll also remind you that gold and the dollar can BOTH climb, especially if the European Union collapses.
In the very long run, we can be certain (barring only the possible development of inexpensive, dependable fusion in which case all bets are off) that gold will dramatically outperform the dollar.

Gold is $1,581/oz today. When it hits $2,000, it will be up 26.5%. Let's see how long that takes. - De 3/11/2013 - ANSWER: 7 Years, 5 Months