The sentiment is since there are very few homes for sale, a new listing that is not yet available will not only whet appetites but it could generate a bidding frenzy when it is finally for sale. (thebalance.com)
Best of all, they not only whet the appetite but satiate it. (westonaprice.org)
You always seem to be able to get my appetite whetted for change, large or small. (stonegableblog.com)