If you're staying in the same market and you already own, then it doesn't matter much. What matters more is that your other investments are relatively outperforming the house (likely already true because of the Fed's money printer).

If you don't already own, waiting for a drop might be wise, but if you're going to sell stock to do it, you might wanna do it now. I'm looking at trading up to a new place right now and that's my plan.