Money, you know. A discrepancy between what we'll get for this place and what she wants for that place of about £100,000.
But are we downhearted? Not really. There are houses and apartments in that corner of Kent we can easily afford. Faversham isn't expensive. It's too far from London to make it first choice for commuters.
Ailz is enjoying herself hugely. Every few minutes she'll call me across the room to look at some greatly desireable mobile home or converted scout hut.
And we're casting our net wide.
"Sheerness is very cheap," she says.
I look at it on the map. It occupies a little rhinoceros horn of land sticking out into the Medway estuary. Marshes all round.
I love marshes.
Travel east and the first town you come to is Rotterdam..